Title: [188227] trunk/Source/WebCore
Revision
188227
Author
[email protected]
Date
2015-08-10 13:51:32 -0700 (Mon, 10 Aug 2015)

Log Message

Web Inspector: [iOS] Allow inspector to retrieve a list of system fonts
https://bugs.webkit.org/show_bug.cgi?id=147033

Reviewed by Joseph Pecoraro.

Implement systemFontFamilies for iOS.

* platform/graphics/ios/FontCacheIOS.mm:
(WebCore::FontCache::systemFontFamilies):

Modified Paths

Diff

Modified: trunk/Source/WebCore/ChangeLog (188226 => 188227)


--- trunk/Source/WebCore/ChangeLog	2015-08-10 20:49:47 UTC (rev 188226)
+++ trunk/Source/WebCore/ChangeLog	2015-08-10 20:51:32 UTC (rev 188227)
@@ -1,5 +1,17 @@
 2015-08-10  Devin Rousso  <[email protected]>
 
+        Web Inspector: [iOS] Allow inspector to retrieve a list of system fonts
+        https://bugs.webkit.org/show_bug.cgi?id=147033
+
+        Reviewed by Joseph Pecoraro.
+
+        Implement systemFontFamilies for iOS.
+
+        * platform/graphics/ios/FontCacheIOS.mm:
+        (WebCore::FontCache::systemFontFamilies):
+
+2015-08-10  Devin Rousso  <[email protected]>
+
         Web Inspector: Invalid selectors can be applied to the stylesheet
         https://bugs.webkit.org/show_bug.cgi?id=147230
 

Modified: trunk/Source/WebCore/platform/graphics/ios/FontCacheIOS.mm (188226 => 188227)


--- trunk/Source/WebCore/platform/graphics/ios/FontCacheIOS.mm	2015-08-10 20:49:47 UTC (rev 188226)
+++ trunk/Source/WebCore/platform/graphics/ios/FontCacheIOS.mm	2015-08-10 20:51:32 UTC (rev 188227)
@@ -33,6 +33,7 @@
 #import "CoreTextSPI.h"
 #import "FontCascade.h"
 #import "RenderThemeIOS.h"
+#import <wtf/HashSet.h>
 #import <wtf/NeverDestroyed.h>
 #import <wtf/RetainPtr.h>
 #import <wtf/text/CString.h>
@@ -472,8 +473,25 @@
 
 Vector<String> FontCache::systemFontFamilies()
 {
-    // FIXME: <https://webkit.org/b/147033> Web Inspector: [iOS] Allow inspector to retrieve a list of system fonts
+    // FIXME: <rdar://problem/21890188>
     Vector<String> fontFamilies;
+    auto emptyFontDescriptor = adoptCF(CTFontDescriptorCreateWithAttributes((CFDictionaryRef) @{ }));
+    auto matchedDescriptors = adoptCF(CTFontDescriptorCreateMatchingFontDescriptors(emptyFontDescriptor.get(), nullptr));
+    if (!matchedDescriptors)
+        return fontFamilies;
+
+    CFIndex numMatches = CFArrayGetCount(matchedDescriptors.get());
+    if (!numMatches)
+        return fontFamilies;
+
+    HashSet<String> visited;
+    for (CFIndex i = 0; i < numMatches; ++i) {
+        auto fontDescriptor = static_cast<CTFontDescriptorRef>(CFArrayGetValueAtIndex(matchedDescriptors.get(), i));
+        if (auto familyName = adoptCF(static_cast<CFStringRef>(CTFontDescriptorCopyAttribute(fontDescriptor, kCTFontFamilyNameAttribute))))
+            visited.add(familyName.get());
+    }
+
+    copyToVector(visited, fontFamilies);
     return fontFamilies;
 }
 
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