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Bug 911951 part.3 Reimplement CompositionManager.setComposition() and CompositionManager.endComposition() r=yxl

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This commit is contained in:
Masayuki Nakano 2013-09-13 00:19:00 +09:00
parent c552beddd0
commit b7f4863b7d
1 changed files with 32 additions and 24 deletions
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56
b2g/chrome/content/forms.js
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@ -1069,10 +1069,14 @@ let CompositionManager = {
_isStarted: false,
_text: '',
_clauseAttrMap: {
'raw-input': domWindowUtils.COMPOSITION_ATTR_RAWINPUT,
'selected-raw-text': domWindowUtils.COMPOSITION_ATTR_SELECTEDRAWTEXT,
'converted-text': domWindowUtils.COMPOSITION_ATTR_CONVERTEDTEXT,
'selected-converted-text': domWindowUtils.COMPOSITION_ATTR_SELECTEDCONVERTEDTEXT
'raw-input':
Ci.nsICompositionStringSynthesizer.ATTR_RAWINPUT,
'selected-raw-text':
Ci.nsICompositionStringSynthesizer.ATTR_SELECTEDRAWTEXT,
'converted-text':
Ci.nsICompositionStringSynthesizer.ATTR_CONVERTEDTEXT,
'selected-converted-text':
Ci.nsICompositionStringSynthesizer.ATTR_SELECTEDCONVERTEDTEXT
},
setComposition: function cm_setComposition(element, text, cursor, clauses) {
@ -1081,20 +1085,14 @@ let CompositionManager = {
return;
}
let len = text.length;
if (cursor < 0) {
cursor = 0;
} else if (cursor > len) {
if (cursor > len) {
cursor = len;
}
let clauseLens = [len, 0, 0];
let clauseAttrs = [domWindowUtils.COMPOSITION_ATTR_RAWINPUT,
domWindowUtils.COMPOSITION_ATTR_RAWINPUT,
domWindowUtils.COMPOSITION_ATTR_RAWINPUT];
let clauseLens = [];
let clauseAttrs = [];
if (clauses) {
let remainingLength = len;
// Currently we don't support 4 or more clauses composition string.
let clauseNum = Math.min(3, clauses.length);
for (let i = 0; i < clauseNum; i++) {
for (let i = 0; i < clauses.length; i++) {
if (clauses[i]) {
let clauseLength = clauses[i].length || 0;
// Make sure the total clauses length is not bigger than that of the
@ -1103,16 +1101,19 @@ let CompositionManager = {
clauseLength = remainingLength;
}
remainingLength -= clauseLength;
clauseLens[i] = clauseLength;
clauseAttrs[i] = this._clauseAttrMap[clauses[i].selectionType] ||
domWindowUtils.COMPOSITION_ATTR_RAWINPUT;
clauseLens.push(clauseLength);
clauseAttrs.push(this._clauseAttrMap[clauses[i].selectionType] ||
Ci.nsICompositionStringSynthesizer.ATTR_RAWINPUT);
}
}
// If the total clauses length is less than that of the composition
// string, extend the last clause to the end of the composition string.
if (remainingLength > 0) {
clauseLens[2] += remainingLength;
clauseLens[clauseLens.length - 1] += remainingLength;
}
} else {
clauseLens.push(len);
clauseAttrs.push(Ci.nsICompositionStringSynthesizer.ATTR_RAWINPUT);
}
// Start composition if need to.
@ -1127,11 +1128,15 @@ let CompositionManager = {
this._text = text;
domWindowUtils.sendCompositionEvent('compositionupdate', text, '');
}
domWindowUtils.sendTextEvent(text,
clauseLens[0], clauseAttrs[0],
clauseLens[1], clauseAttrs[1],
clauseLens[2], clauseAttrs[2],
cursor, 0);
let compositionString = domWindowUtils.createCompositionStringSynthesizer();
compositionString.setString(text);
for (var i = 0; i < clauseLens.length; i++) {
compositionString.appendClause(clauseLens[i], clauseAttrs[i]);
}
if (cursor >= 0) {
compositionString.setCaret(cursor, 0);
}
compositionString.dispatchEvent();
},
endComposition: function cm_endComposition(text) {
@ -1142,9 +1147,12 @@ let CompositionManager = {
if (this._text !== text) {
domWindowUtils.sendCompositionEvent('compositionupdate', text, '');
}
let compositionString = domWindowUtils.createCompositionStringSynthesizer();
compositionString.setString(text);
// Set the cursor position to |text.length| so that the text will be
// committed before the cursor position.
domWindowUtils.sendTextEvent(text, 0, 0, 0, 0, 0, 0, text.length, 0);
compositionString.setCaret(text.length, 0);
compositionString.dispatchEvent();
domWindowUtils.sendCompositionEvent('compositionend', text, '');
this._text = '';
this._isStarted = false;