The Tor Browser: widget/cocoa/nsColorPicker.mm@7e26c7da4463 (annotated)

widget/cocoa/nsColorPicker.mm@7e26c7da4463 (annotated)

widget/cocoa/nsColorPicker.mm

Wed, 31 Dec 2014 06:55:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:55:50 +0100
changeset 2: 7e26c7da4463
permissions: -rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

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

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widget/cocoa/nsColorPicker.mm@7e26c7da4463 (annotated)

widget/cocoa/nsColorPicker.mm