mirror of
https://github.com/mozilla/gecko-dev.git
synced 2025-01-10 05:47:04 +00:00
fixed so script can find out if an option is selected when no frame exists
no all DOM calls can be made on a select or an option with or without a frame and the results will be correct All the PresState info (for now) is kept in the select content, a couple of new methods were added to nsISelectElement to make it easier for the option to Get/Set its index Bug 45760 r=kmcclusk
This commit is contained in:
rods%netscape.com
parent
79fb5e0d32
commit
2ec6128d8f
@ -29,6 +29,7 @@
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{ 0xa6cf90f6, 0x15b3, 0x11d2, \
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{ 0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32 } }
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class nsIDOMHTMLOptionElement;
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/**
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* This interface is used to notify a SELECT when OPTION
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@ -65,6 +66,17 @@ public:
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* to the select during document loading.
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*/
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NS_IMETHOD IsDoneAddingContent(PRBool * aIsDone) = 0;
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/**
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* Returns whether we're the option is selected
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*/
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NS_IMETHOD IsOptionSelected(nsIDOMHTMLOptionElement* anOption, PRBool * aIsSelected) = 0;
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/**
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* Sets an option selected or delselected
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*/
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NS_IMETHOD SetOptionSelected(nsIDOMHTMLOptionElement* anOption, PRBool aIsSelected) = 0;
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};
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#endif // nsISelectElement_h___
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@ -222,6 +222,9 @@ nsHTMLOptionElement::GetForm(nsIDOMHTMLFormElement** aForm)
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NS_IMETHODIMP
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nsHTMLOptionElement::GetSelected(PRBool* aValue)
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{
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NS_ENSURE_ARG_POINTER(aValue);
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*aValue = PR_FALSE;
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nsIFormControlFrame* formControlFrame = nsnull;
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nsresult rv = GetPrimaryFrame(formControlFrame);
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if (NS_SUCCEEDED(rv)) {
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@ -232,7 +235,21 @@ nsHTMLOptionElement::GetSelected(PRBool* aValue)
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formControlFrame->GetProperty(nsHTMLAtoms::selected, value);
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*aValue = value.EqualsWithConversion("1");
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}
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} else {
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// Note: The select content obj maintains all the PresState
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// so defer to it to get the answer
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rv = NS_ERROR_FAILURE;
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nsCOMPtr<nsIDOMNode> parentNode;
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if (NS_SUCCEEDED(this->GetParentNode(getter_AddRefs(parentNode)))) {
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if (parentNode) {
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nsCOMPtr<nsISelectElement> selectElement(do_QueryInterface(parentNode));
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if (selectElement) {
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return selectElement->IsOptionSelected(this, aValue);
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}
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}
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}
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}
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return rv;
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}
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@ -248,7 +265,20 @@ nsHTMLOptionElement::SetSelected(PRBool aValue)
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PRInt32 indx;
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result = GetIndex(&indx);
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if (NS_SUCCEEDED(result)) {
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selectFrame->SetOptionSelected(indx, aValue);
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return selectFrame->SetOptionSelected(indx, aValue);
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}
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}
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} else {
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// Note: The select content obj maintains all the PresState
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// so defer to it to get the answer
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nsCOMPtr<nsIDOMNode> parentNode;
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result = NS_ERROR_FAILURE;
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if (NS_SUCCEEDED(this->GetParentNode(getter_AddRefs(parentNode)))) {
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if (parentNode) {
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nsCOMPtr<nsISelectElement> selectElement(do_QueryInterface(parentNode));
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if (selectElement) {
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return selectElement->SetOptionSelected(this, aValue);
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}
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}
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}
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}
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@ -287,6 +287,8 @@ public:
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NS_IMETHOD RemoveOption(nsIContent* aContent);
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NS_IMETHOD DoneAddingContent(PRBool aIsDone);
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NS_IMETHOD IsDoneAddingContent(PRBool * aIsDone);
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NS_IMETHOD IsOptionSelected(nsIDOMHTMLOptionElement* anOption, PRBool * aIsSelected);
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NS_IMETHOD SetOptionSelected(nsIDOMHTMLOptionElement* anOption, PRBool aIsSelected);
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// nsIJSScriptObject
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NS_IMPL_ISCRIPTOBJECTOWNER_USING_GENERIC(mInner)
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@ -305,7 +307,10 @@ public:
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virtual void Finalize(JSContext *aContext, JSObject *aObj);
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protected:
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NS_IMETHOD GetPresState(nsIPresState** aPresState, nsISupportsArray** aValueArray);
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// Helper Methods
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nsresult GetPresState(nsIPresState** aPresState, nsISupportsArray** aValueArray);
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nsresult GetOptionIndex(nsIDOMHTMLOptionElement* aOption, PRUint32 * anIndex);
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nsresult SetOptionSelectedByIndex(PRInt32 aIndex, PRBool aIsSelected);
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nsGenericHTMLContainerFormElement mInner;
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nsIForm* mForm;
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@ -755,53 +760,178 @@ nsHTMLSelectElement::SetSelectedIndex(PRInt32 aIndex)
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formControlFrame->SetProperty(presContext, nsHTMLAtoms::selectedindex, value);
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NS_IF_RELEASE(presContext);
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} else {
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// Since there are no frames, then we must adjust which options
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// are selcted in the content and the current select state is kept in
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// the PreState
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//
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// First, get whether this is a select with
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// multiple items that can be slected
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PRBool isMultiple;
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nsresult res = GetMultiple(&isMultiple); // Must not be multiple
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if (NS_FAILED(res)) {
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isMultiple = PR_FALSE;
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}
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SetOptionSelectedByIndex(aIndex, PR_TRUE);
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}
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return NS_OK;
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}
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// Call the helper method to get the PresState and
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// the SupportsArray that contains the value
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//
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nsCOMPtr<nsIPresState> presState;
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nsCOMPtr<nsISupportsArray> value;
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res = GetPresState(getter_AddRefs(presState), getter_AddRefs(value));
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if (NS_SUCCEEDED(res) && !presState) {
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nsresult
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nsHTMLSelectElement::GetOptionIndex(nsIDOMHTMLOptionElement* aOption, PRUint32 * anIndex)
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{
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// first find index of option
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nsCOMPtr<nsIDOMNSHTMLOptionCollection> options;
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nsresult rv = GetOptions(getter_AddRefs(options));
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if (NS_SUCCEEDED(rv) && options) {
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PRUint32 numOptions;
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rv = options->GetLength(&numOptions);
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if (NS_SUCCEEDED(rv)) {
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for (PRUint32 i = 0; i < numOptions; i++) {
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nsCOMPtr<nsIDOMNode> node;
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rv = options->Item(i, getter_AddRefs(node));
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if (NS_SUCCEEDED(rv) && node) {
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nsCOMPtr<nsIDOMHTMLOptionElement> option = do_QueryInterface(node, &rv);
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if (NS_SUCCEEDED(rv) && option && option.get() == aOption) {
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*anIndex = i;
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return NS_OK;
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}
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}
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}
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}
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}
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP
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nsHTMLSelectElement::IsOptionSelected(nsIDOMHTMLOptionElement* aOption, PRBool * aIsSelected)
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{
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// start off by assuming it isn't in the list of index objects
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*aIsSelected = PR_FALSE;
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// first find the index of the incoming option
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PRUint32 index = 0;
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if (NS_FAILED(GetOptionIndex(aOption, &index))) {
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return NS_ERROR_FAILURE;
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}
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// The PresState hold a nsISupportsArray that contain nsISupportsPRInt32 objects that hold
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// the index of the option that is selected, for example, there are 10 options and option
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// 2 and oiption 8 are selected then the array hold to objects, one that contains 2 and one that contains 8
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nsCOMPtr<nsIPresState> presState;
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nsCOMPtr<nsISupportsArray> value;
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nsresult res = GetPresState(getter_AddRefs(presState), getter_AddRefs(value));
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if (NS_SUCCEEDED(res) && presState) {
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// get the property by name
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// I am not sure why this is done, versus just using the value array above
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nsCOMPtr<nsISupports> supp;
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presState->GetStatePropertyAsSupports(NS_ConvertASCIItoUCS2("selecteditems"), getter_AddRefs(supp));
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res = NS_ERROR_NULL_POINTER;
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if (supp) {
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// Query for nsISupportArray from nsISupports
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nsCOMPtr<nsISupportsArray> svalue = do_QueryInterface(supp);
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if (svalue) {
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PRUint32 count = 0; // num items in array
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svalue->Count(&count);
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// loop through the array look for "index" object and
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// then we compare it against the option's index to see if there is a match
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nsCOMPtr<nsISupportsPRInt32> thisVal;
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for (PRUint32 i=0; i<count; i++) {
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// get index obj
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nsCOMPtr<nsISupports> suppval = getter_AddRefs(svalue->ElementAt(i));
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thisVal = do_QueryInterface(suppval);
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if (thisVal) {
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// get out the index
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PRInt32 optIndex;
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res = thisVal->GetData(&optIndex);
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if (NS_SUCCEEDED(res)) {
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// ccompare them then bail if they match
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if (PRUint32(optIndex) == index) {
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*aIsSelected = PR_TRUE;
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return NS_OK;
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}
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}
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} else {
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res = NS_ERROR_UNEXPECTED;
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}
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if (!NS_SUCCEEDED(res)) break;
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}
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}
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLSelectElement::SetOptionSelected(nsIDOMHTMLOptionElement* anOption, PRBool aIsSelected)
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{
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PRUint32 index = 0;
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if (NS_FAILED(GetOptionIndex(anOption, &index))) {
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return NS_ERROR_FAILURE;
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}
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return SetOptionSelectedByIndex(index, aIsSelected);
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}
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nsresult
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nsHTMLSelectElement::SetOptionSelectedByIndex(PRInt32 aIndex, PRBool aIsSelected)
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{
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// Since there are no frames, then we must adjust which options
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// are selcted in the content and the current select state is kept in
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// the PreState
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//
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// First, get whether this is a select with
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// multiple items that can be slected
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PRBool isMultiple;
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nsresult res = GetMultiple(&isMultiple); // Must not be multiple
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if (NS_FAILED(res)) {
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isMultiple = PR_FALSE;
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}
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// Call the helper method to get the PresState and
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// the SupportsArray that contains the value
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//
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nsCOMPtr<nsIPresState> presState;
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nsCOMPtr<nsISupportsArray> value;
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res = GetPresState(getter_AddRefs(presState), getter_AddRefs(value));
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if (NS_SUCCEEDED(res) && !presState) {
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return NS_OK;
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}
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// If the nsISupportsArray doesn't exist then we must creat one
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// cache the values
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PRBool doesExist = PR_FALSE;
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if (!value) {
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// if we are selecting an options continue on
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// but if the array doesn't exist and we are unselecting an option bail out
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// because we don't need to do anything
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if (aIsSelected) {
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res = NS_NewISupportsArray(getter_AddRefs(value));
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} else {
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return NS_OK;
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}
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} else {
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doesExist = PR_TRUE;
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}
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if (NS_SUCCEEDED(res) && value) {
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// The nsISupportArray will hold a list of indexes
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// of the items that are selected
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// get the count of selected items
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PRUint32 count = 0;
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value->Count(&count);
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// If there are no items and we are unselecting an option
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// then we don't have to do anything.
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if (count == 0 && !aIsSelected) {
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return NS_OK;
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}
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// If the nsISupportsArray doesn't exist then we must creat one
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// cache the values
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PRBool doesExist = PR_FALSE;
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if (!value) {
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res = NS_NewISupportsArray(getter_AddRefs(value));
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} else {
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doesExist = PR_TRUE;
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// if not multiple then only one item can be selected
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// so we clear the list of selcted items
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if (!isMultiple || (-1 == aIndex)) { // -1 -> deselect all (bug 28143)
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value->Clear();
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count = 0;
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}
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if (NS_SUCCEEDED(res) && value) {
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// The nsISupportArray will hold a list of indexes
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// of the items that are selected
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// get the count of selected items
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PRUint32 count = 0;
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value->Count(&count);
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// if not multiple then only one item can be selected
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// so we clear the list of selcted items
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if (!isMultiple || (-1 == aIndex)) { // -1 -> deselect all (bug 28143)
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value->Clear();
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count = 0;
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}
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// Set the index as selected and add it to the array
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if (-1 != aIndex) {
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// Set the index as selected and add it to the array
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if (-1 != aIndex) {
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if (aIsSelected) {
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nsCOMPtr<nsISupportsPRInt32> thisVal;
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res = nsComponentManager::CreateInstance(NS_SUPPORTS_PRINT32_PROGID,
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nsnull, NS_GET_IID(nsISupportsPRInt32), (void**)getter_AddRefs(thisVal));
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@ -812,15 +942,35 @@ nsHTMLSelectElement::SetSelectedIndex(PRInt32 aIndex)
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if (!okay) res = NS_ERROR_OUT_OF_MEMORY; // Most likely cause;
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}
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}
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} else {
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// deselecting the option -> remove it from the list
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nsCOMPtr<nsISupportsPRInt32> thisVal;
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for (PRUint32 i=0; i<count; i++) {
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nsCOMPtr<nsISupports> suppval = getter_AddRefs(value->ElementAt(i));
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thisVal = do_QueryInterface(suppval);
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if (thisVal) {
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PRInt32 optIndex;
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res = thisVal->GetData(&optIndex);
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if (NS_SUCCEEDED(res)) {
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if (optIndex == aIndex) {
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value->RemoveElementAt(i);
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return NS_OK;
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}
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}
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} else {
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res = NS_ERROR_UNEXPECTED;
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}
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if (!NS_SUCCEEDED(res)) break;
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}
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}
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}
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// If it is a new nsISupportsArray then
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// set it into the PresState
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if (!doesExist) {
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presState->SetStatePropertyAsSupports(NS_ConvertASCIItoUCS2("selecteditems"), value);
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}
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} // if
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}
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// If it is a new nsISupportsArray then
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// set it into the PresState
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if (!doesExist) {
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presState->SetStatePropertyAsSupports(NS_ConvertASCIItoUCS2("selecteditems"), value);
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}
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} // if
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return NS_OK;
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}
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@ -1030,7 +1180,7 @@ nsHTMLSelectElement::AddOption(nsIContent* aContent)
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// aValueArray will be null if it didn't exist and non-null if it did
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// always return NS_OK whether aValueArray was nsnull or not
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//-----------------------------------------------------------------
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NS_IMETHODIMP
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nsresult
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nsHTMLSelectElement::GetPresState(nsIPresState** aPresState, nsISupportsArray** aValueArray)
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{
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*aValueArray = nsnull;
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@ -29,6 +29,7 @@
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{ 0xa6cf90f6, 0x15b3, 0x11d2, \
|
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{ 0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32 } }
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class nsIDOMHTMLOptionElement;
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/**
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* This interface is used to notify a SELECT when OPTION
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@ -65,6 +66,17 @@ public:
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* to the select during document loading.
|
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*/
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NS_IMETHOD IsDoneAddingContent(PRBool * aIsDone) = 0;
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/**
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* Returns whether we're the option is selected
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*/
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NS_IMETHOD IsOptionSelected(nsIDOMHTMLOptionElement* anOption, PRBool * aIsSelected) = 0;
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/**
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* Sets an option selected or delselected
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*/
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NS_IMETHOD SetOptionSelected(nsIDOMHTMLOptionElement* anOption, PRBool aIsSelected) = 0;
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};
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#endif // nsISelectElement_h___
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@ -222,6 +222,9 @@ nsHTMLOptionElement::GetForm(nsIDOMHTMLFormElement** aForm)
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NS_IMETHODIMP
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nsHTMLOptionElement::GetSelected(PRBool* aValue)
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{
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NS_ENSURE_ARG_POINTER(aValue);
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*aValue = PR_FALSE;
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nsIFormControlFrame* formControlFrame = nsnull;
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nsresult rv = GetPrimaryFrame(formControlFrame);
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if (NS_SUCCEEDED(rv)) {
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@ -232,7 +235,21 @@ nsHTMLOptionElement::GetSelected(PRBool* aValue)
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formControlFrame->GetProperty(nsHTMLAtoms::selected, value);
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*aValue = value.EqualsWithConversion("1");
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}
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} else {
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// Note: The select content obj maintains all the PresState
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// so defer to it to get the answer
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rv = NS_ERROR_FAILURE;
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nsCOMPtr<nsIDOMNode> parentNode;
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if (NS_SUCCEEDED(this->GetParentNode(getter_AddRefs(parentNode)))) {
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if (parentNode) {
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nsCOMPtr<nsISelectElement> selectElement(do_QueryInterface(parentNode));
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if (selectElement) {
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return selectElement->IsOptionSelected(this, aValue);
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}
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}
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}
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}
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return rv;
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}
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@ -248,7 +265,20 @@ nsHTMLOptionElement::SetSelected(PRBool aValue)
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PRInt32 indx;
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result = GetIndex(&indx);
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if (NS_SUCCEEDED(result)) {
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selectFrame->SetOptionSelected(indx, aValue);
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return selectFrame->SetOptionSelected(indx, aValue);
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}
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}
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} else {
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// Note: The select content obj maintains all the PresState
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// so defer to it to get the answer
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nsCOMPtr<nsIDOMNode> parentNode;
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result = NS_ERROR_FAILURE;
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if (NS_SUCCEEDED(this->GetParentNode(getter_AddRefs(parentNode)))) {
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if (parentNode) {
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nsCOMPtr<nsISelectElement> selectElement(do_QueryInterface(parentNode));
|
||||
if (selectElement) {
|
||||
return selectElement->SetOptionSelected(this, aValue);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -287,6 +287,8 @@ public:
|
||||
NS_IMETHOD RemoveOption(nsIContent* aContent);
|
||||
NS_IMETHOD DoneAddingContent(PRBool aIsDone);
|
||||
NS_IMETHOD IsDoneAddingContent(PRBool * aIsDone);
|
||||
NS_IMETHOD IsOptionSelected(nsIDOMHTMLOptionElement* anOption, PRBool * aIsSelected);
|
||||
NS_IMETHOD SetOptionSelected(nsIDOMHTMLOptionElement* anOption, PRBool aIsSelected);
|
||||
|
||||
// nsIJSScriptObject
|
||||
NS_IMPL_ISCRIPTOBJECTOWNER_USING_GENERIC(mInner)
|
||||
@ -305,7 +307,10 @@ public:
|
||||
virtual void Finalize(JSContext *aContext, JSObject *aObj);
|
||||
|
||||
protected:
|
||||
NS_IMETHOD GetPresState(nsIPresState** aPresState, nsISupportsArray** aValueArray);
|
||||
// Helper Methods
|
||||
nsresult GetPresState(nsIPresState** aPresState, nsISupportsArray** aValueArray);
|
||||
nsresult GetOptionIndex(nsIDOMHTMLOptionElement* aOption, PRUint32 * anIndex);
|
||||
nsresult SetOptionSelectedByIndex(PRInt32 aIndex, PRBool aIsSelected);
|
||||
|
||||
nsGenericHTMLContainerFormElement mInner;
|
||||
nsIForm* mForm;
|
||||
@ -755,53 +760,178 @@ nsHTMLSelectElement::SetSelectedIndex(PRInt32 aIndex)
|
||||
formControlFrame->SetProperty(presContext, nsHTMLAtoms::selectedindex, value);
|
||||
NS_IF_RELEASE(presContext);
|
||||
} else {
|
||||
// Since there are no frames, then we must adjust which options
|
||||
// are selcted in the content and the current select state is kept in
|
||||
// the PreState
|
||||
//
|
||||
// First, get whether this is a select with
|
||||
// multiple items that can be slected
|
||||
PRBool isMultiple;
|
||||
nsresult res = GetMultiple(&isMultiple); // Must not be multiple
|
||||
if (NS_FAILED(res)) {
|
||||
isMultiple = PR_FALSE;
|
||||
}
|
||||
SetOptionSelectedByIndex(aIndex, PR_TRUE);
|
||||
}
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
// Call the helper method to get the PresState and
|
||||
// the SupportsArray that contains the value
|
||||
//
|
||||
nsCOMPtr<nsIPresState> presState;
|
||||
nsCOMPtr<nsISupportsArray> value;
|
||||
res = GetPresState(getter_AddRefs(presState), getter_AddRefs(value));
|
||||
if (NS_SUCCEEDED(res) && !presState) {
|
||||
nsresult
|
||||
nsHTMLSelectElement::GetOptionIndex(nsIDOMHTMLOptionElement* aOption, PRUint32 * anIndex)
|
||||
{
|
||||
// first find index of option
|
||||
nsCOMPtr<nsIDOMNSHTMLOptionCollection> options;
|
||||
nsresult rv = GetOptions(getter_AddRefs(options));
|
||||
if (NS_SUCCEEDED(rv) && options) {
|
||||
PRUint32 numOptions;
|
||||
rv = options->GetLength(&numOptions);
|
||||
if (NS_SUCCEEDED(rv)) {
|
||||
for (PRUint32 i = 0; i < numOptions; i++) {
|
||||
nsCOMPtr<nsIDOMNode> node;
|
||||
rv = options->Item(i, getter_AddRefs(node));
|
||||
if (NS_SUCCEEDED(rv) && node) {
|
||||
nsCOMPtr<nsIDOMHTMLOptionElement> option = do_QueryInterface(node, &rv);
|
||||
if (NS_SUCCEEDED(rv) && option && option.get() == aOption) {
|
||||
*anIndex = i;
|
||||
return NS_OK;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return NS_ERROR_FAILURE;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsHTMLSelectElement::IsOptionSelected(nsIDOMHTMLOptionElement* aOption, PRBool * aIsSelected)
|
||||
{
|
||||
// start off by assuming it isn't in the list of index objects
|
||||
*aIsSelected = PR_FALSE;
|
||||
|
||||
// first find the index of the incoming option
|
||||
PRUint32 index = 0;
|
||||
if (NS_FAILED(GetOptionIndex(aOption, &index))) {
|
||||
return NS_ERROR_FAILURE;
|
||||
}
|
||||
|
||||
// The PresState hold a nsISupportsArray that contain nsISupportsPRInt32 objects that hold
|
||||
// the index of the option that is selected, for example, there are 10 options and option
|
||||
// 2 and oiption 8 are selected then the array hold to objects, one that contains 2 and one that contains 8
|
||||
nsCOMPtr<nsIPresState> presState;
|
||||
nsCOMPtr<nsISupportsArray> value;
|
||||
nsresult res = GetPresState(getter_AddRefs(presState), getter_AddRefs(value));
|
||||
if (NS_SUCCEEDED(res) && presState) {
|
||||
// get the property by name
|
||||
// I am not sure why this is done, versus just using the value array above
|
||||
nsCOMPtr<nsISupports> supp;
|
||||
presState->GetStatePropertyAsSupports(NS_ConvertASCIItoUCS2("selecteditems"), getter_AddRefs(supp));
|
||||
|
||||
res = NS_ERROR_NULL_POINTER;
|
||||
if (supp) {
|
||||
|
||||
// Query for nsISupportArray from nsISupports
|
||||
nsCOMPtr<nsISupportsArray> svalue = do_QueryInterface(supp);
|
||||
if (svalue) {
|
||||
|
||||
PRUint32 count = 0; // num items in array
|
||||
svalue->Count(&count);
|
||||
|
||||
// loop through the array look for "index" object and
|
||||
// then we compare it against the option's index to see if there is a match
|
||||
nsCOMPtr<nsISupportsPRInt32> thisVal;
|
||||
for (PRUint32 i=0; i<count; i++) {
|
||||
// get index obj
|
||||
nsCOMPtr<nsISupports> suppval = getter_AddRefs(svalue->ElementAt(i));
|
||||
thisVal = do_QueryInterface(suppval);
|
||||
if (thisVal) {
|
||||
// get out the index
|
||||
PRInt32 optIndex;
|
||||
res = thisVal->GetData(&optIndex);
|
||||
if (NS_SUCCEEDED(res)) {
|
||||
// ccompare them then bail if they match
|
||||
if (PRUint32(optIndex) == index) {
|
||||
*aIsSelected = PR_TRUE;
|
||||
return NS_OK;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
res = NS_ERROR_UNEXPECTED;
|
||||
}
|
||||
if (!NS_SUCCEEDED(res)) break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return NS_OK;
|
||||
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsHTMLSelectElement::SetOptionSelected(nsIDOMHTMLOptionElement* anOption, PRBool aIsSelected)
|
||||
{
|
||||
PRUint32 index = 0;
|
||||
if (NS_FAILED(GetOptionIndex(anOption, &index))) {
|
||||
return NS_ERROR_FAILURE;
|
||||
}
|
||||
|
||||
return SetOptionSelectedByIndex(index, aIsSelected);
|
||||
}
|
||||
|
||||
nsresult
|
||||
nsHTMLSelectElement::SetOptionSelectedByIndex(PRInt32 aIndex, PRBool aIsSelected)
|
||||
{
|
||||
// Since there are no frames, then we must adjust which options
|
||||
// are selcted in the content and the current select state is kept in
|
||||
// the PreState
|
||||
//
|
||||
// First, get whether this is a select with
|
||||
// multiple items that can be slected
|
||||
PRBool isMultiple;
|
||||
nsresult res = GetMultiple(&isMultiple); // Must not be multiple
|
||||
if (NS_FAILED(res)) {
|
||||
isMultiple = PR_FALSE;
|
||||
}
|
||||
|
||||
// Call the helper method to get the PresState and
|
||||
// the SupportsArray that contains the value
|
||||
//
|
||||
nsCOMPtr<nsIPresState> presState;
|
||||
nsCOMPtr<nsISupportsArray> value;
|
||||
res = GetPresState(getter_AddRefs(presState), getter_AddRefs(value));
|
||||
if (NS_SUCCEEDED(res) && !presState) {
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
// If the nsISupportsArray doesn't exist then we must creat one
|
||||
// cache the values
|
||||
PRBool doesExist = PR_FALSE;
|
||||
if (!value) {
|
||||
// if we are selecting an options continue on
|
||||
// but if the array doesn't exist and we are unselecting an option bail out
|
||||
// because we don't need to do anything
|
||||
if (aIsSelected) {
|
||||
res = NS_NewISupportsArray(getter_AddRefs(value));
|
||||
} else {
|
||||
return NS_OK;
|
||||
}
|
||||
} else {
|
||||
doesExist = PR_TRUE;
|
||||
}
|
||||
|
||||
if (NS_SUCCEEDED(res) && value) {
|
||||
// The nsISupportArray will hold a list of indexes
|
||||
// of the items that are selected
|
||||
// get the count of selected items
|
||||
PRUint32 count = 0;
|
||||
value->Count(&count);
|
||||
|
||||
// If there are no items and we are unselecting an option
|
||||
// then we don't have to do anything.
|
||||
if (count == 0 && !aIsSelected) {
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
// If the nsISupportsArray doesn't exist then we must creat one
|
||||
// cache the values
|
||||
PRBool doesExist = PR_FALSE;
|
||||
if (!value) {
|
||||
res = NS_NewISupportsArray(getter_AddRefs(value));
|
||||
} else {
|
||||
doesExist = PR_TRUE;
|
||||
// if not multiple then only one item can be selected
|
||||
// so we clear the list of selcted items
|
||||
if (!isMultiple || (-1 == aIndex)) { // -1 -> deselect all (bug 28143)
|
||||
value->Clear();
|
||||
count = 0;
|
||||
}
|
||||
|
||||
if (NS_SUCCEEDED(res) && value) {
|
||||
// The nsISupportArray will hold a list of indexes
|
||||
// of the items that are selected
|
||||
// get the count of selected items
|
||||
PRUint32 count = 0;
|
||||
value->Count(&count);
|
||||
|
||||
// if not multiple then only one item can be selected
|
||||
// so we clear the list of selcted items
|
||||
if (!isMultiple || (-1 == aIndex)) { // -1 -> deselect all (bug 28143)
|
||||
value->Clear();
|
||||
count = 0;
|
||||
}
|
||||
|
||||
// Set the index as selected and add it to the array
|
||||
if (-1 != aIndex) {
|
||||
// Set the index as selected and add it to the array
|
||||
if (-1 != aIndex) {
|
||||
if (aIsSelected) {
|
||||
nsCOMPtr<nsISupportsPRInt32> thisVal;
|
||||
res = nsComponentManager::CreateInstance(NS_SUPPORTS_PRINT32_PROGID,
|
||||
nsnull, NS_GET_IID(nsISupportsPRInt32), (void**)getter_AddRefs(thisVal));
|
||||
@ -812,15 +942,35 @@ nsHTMLSelectElement::SetSelectedIndex(PRInt32 aIndex)
|
||||
if (!okay) res = NS_ERROR_OUT_OF_MEMORY; // Most likely cause;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
// deselecting the option -> remove it from the list
|
||||
nsCOMPtr<nsISupportsPRInt32> thisVal;
|
||||
for (PRUint32 i=0; i<count; i++) {
|
||||
nsCOMPtr<nsISupports> suppval = getter_AddRefs(value->ElementAt(i));
|
||||
thisVal = do_QueryInterface(suppval);
|
||||
if (thisVal) {
|
||||
PRInt32 optIndex;
|
||||
res = thisVal->GetData(&optIndex);
|
||||
if (NS_SUCCEEDED(res)) {
|
||||
if (optIndex == aIndex) {
|
||||
value->RemoveElementAt(i);
|
||||
return NS_OK;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
res = NS_ERROR_UNEXPECTED;
|
||||
}
|
||||
if (!NS_SUCCEEDED(res)) break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// If it is a new nsISupportsArray then
|
||||
// set it into the PresState
|
||||
if (!doesExist) {
|
||||
presState->SetStatePropertyAsSupports(NS_ConvertASCIItoUCS2("selecteditems"), value);
|
||||
}
|
||||
} // if
|
||||
}
|
||||
// If it is a new nsISupportsArray then
|
||||
// set it into the PresState
|
||||
if (!doesExist) {
|
||||
presState->SetStatePropertyAsSupports(NS_ConvertASCIItoUCS2("selecteditems"), value);
|
||||
}
|
||||
} // if
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
@ -1030,7 +1180,7 @@ nsHTMLSelectElement::AddOption(nsIContent* aContent)
|
||||
// aValueArray will be null if it didn't exist and non-null if it did
|
||||
// always return NS_OK whether aValueArray was nsnull or not
|
||||
//-----------------------------------------------------------------
|
||||
NS_IMETHODIMP
|
||||
nsresult
|
||||
nsHTMLSelectElement::GetPresState(nsIPresState** aPresState, nsISupportsArray** aValueArray)
|
||||
{
|
||||
*aValueArray = nsnull;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user