mirror of
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184 lines
4.4 KiB
Plaintext
184 lines
4.4 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#import <Cocoa/Cocoa.h>
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#include "nsColorPicker.h"
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#include "nsCocoaUtils.h"
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#include "nsThreadUtils.h"
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using namespace mozilla;
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static unsigned int
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HexStrToInt(NSString* str)
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{
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unsigned int result = 0;
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for (unsigned int i = 0; i < [str length]; ++i) {
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char c = [str characterAtIndex:i];
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result *= 16;
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if (c >= '0' && c <= '9') {
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result += c - '0';
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} else if (c >= 'A' && c <= 'F') {
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result += 10 + (c - 'A');
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} else {
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result += 10 + (c - 'a');
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}
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}
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return result;
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}
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@interface NSColorPanelWrapper : NSObject <NSWindowDelegate>
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{
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NSColorPanel* mColorPanel;
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nsColorPicker* mColorPicker;
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}
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- (id)initWithPicker:(nsColorPicker*)aPicker;
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- (void)open:(NSColor*)aInitialColor title:(NSString*)aTitle;
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- (void)retarget:(nsColorPicker*)aPicker;
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- (void)colorChanged:(NSColorPanel*)aPanel;
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@end
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@implementation NSColorPanelWrapper
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- (id)initWithPicker:(nsColorPicker*)aPicker
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{
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mColorPicker = aPicker;
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mColorPanel = [NSColorPanel sharedColorPanel];
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self = [super init];
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return self;
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}
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- (void)open:(NSColor*)aInitialColor title:(NSString*)aTitle
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{
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[mColorPanel setTitle:aTitle];
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[mColorPanel setColor:aInitialColor];
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[mColorPanel setTarget:self];
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[mColorPanel setAction:@selector(colorChanged:)];
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[mColorPanel setDelegate:self];
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[mColorPanel makeKeyAndOrderFront:nil];
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}
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- (void)colorChanged:(NSColorPanel*)aPanel
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{
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mColorPicker->Update([mColorPanel color]);
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}
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- (void)windowWillClose:(NSNotification*)aNotification
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{
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mColorPicker->Done();
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}
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- (void)retarget:(nsColorPicker*)aPicker
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{
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mColorPicker->DoneWithRetarget();
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mColorPicker = aPicker;
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}
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- (void)dealloc
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{
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if ([mColorPanel delegate] == self) {
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[mColorPanel setTarget:nil];
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[mColorPanel setAction:nil];
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[mColorPanel setDelegate:nil];
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}
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mColorPanel = nil;
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mColorPicker = nullptr;
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[super dealloc];
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}
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@end
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NS_IMPL_ISUPPORTS(nsColorPicker, nsIColorPicker)
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NSColorPanelWrapper* nsColorPicker::sColorPanelWrapper = nullptr;
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nsColorPicker::~nsColorPicker()
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{
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}
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NS_IMETHODIMP
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nsColorPicker::Init(nsIDOMWindow* aParent, const nsAString& aTitle,
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const nsAString& aInitialColor)
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{
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MOZ_ASSERT(NS_IsMainThread(),
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"Color pickers can only be opened from main thread currently");
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mTitle = aTitle;
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mColor = aInitialColor;
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if (sColorPanelWrapper) {
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// Update current wrapper to target the new input instead
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[sColorPanelWrapper retarget:this];
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} else {
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// Create a brand new color panel wrapper
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sColorPanelWrapper = [[NSColorPanelWrapper alloc] initWithPicker:this];
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}
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return NS_OK;
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}
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/* static */ NSColor*
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nsColorPicker::GetNSColorFromHexString(const nsAString& aColor)
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{
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NSString* str = nsCocoaUtils::ToNSString(aColor);
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double red = HexStrToInt([str substringWithRange:NSMakeRange(1, 2)]) / 255.0;
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double green = HexStrToInt([str substringWithRange:NSMakeRange(3, 2)]) / 255.0;
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double blue = HexStrToInt([str substringWithRange:NSMakeRange(5, 2)]) / 255.0;
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return [NSColor colorWithDeviceRed: red green: green blue: blue alpha: 1.0];
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}
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/* static */ void
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nsColorPicker::GetHexStringFromNSColor(NSColor* aColor, nsAString& aResult)
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{
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CGFloat redFloat, greenFloat, blueFloat;
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[aColor getRed: &redFloat green: &greenFloat blue: &blueFloat alpha: nil];
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nsCocoaUtils::GetStringForNSString([NSString stringWithFormat:@"#%02x%02x%02x",
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(int)(redFloat * 255),
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(int)(greenFloat * 255),
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(int)(blueFloat * 255)],
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aResult);
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}
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NS_IMETHODIMP
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nsColorPicker::Open(nsIColorPickerShownCallback* aCallback)
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{
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MOZ_ASSERT(aCallback);
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mCallback = aCallback;
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[sColorPanelWrapper open:GetNSColorFromHexString(mColor)
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title:nsCocoaUtils::ToNSString(mTitle)];
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NS_ADDREF_THIS();
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return NS_OK;
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}
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void
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nsColorPicker::Update(NSColor* aColor)
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{
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GetHexStringFromNSColor(aColor, mColor);
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mCallback->Update(mColor);
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}
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void
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nsColorPicker::DoneWithRetarget()
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{
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mCallback->Done(EmptyString());
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mCallback = nullptr;
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NS_RELEASE_THIS();
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}
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void
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nsColorPicker::Done()
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{
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[sColorPanelWrapper release];
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sColorPanelWrapper = nullptr;
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DoneWithRetarget();
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}
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