blob: 0ea8842060d57bcde883bcbc11434e1319e88150 [file] [log] [blame]
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "chrome/browser/ui/cocoa/l10n_util.h"
#include "base/i18n/rtl.h"
#include "base/mac/availability.h"
#include "base/mac/mac_util.h"
#include "base/strings/string_util.h"
#include "base/strings/sys_string_conversions.h"
#include "chrome/common/chrome_features.h"
#import "third_party/google_toolbox_for_mac/src/AppKit/GTMUILocalizerAndLayoutTweaker.h"
namespace cocoa_l10n_util {
NSInteger CompareFrameY(id view1, id view2, void* context) {
CGFloat y1 = NSMinY([view1 frame]);
CGFloat y2 = NSMinY([view2 frame]);
if (y1 < y2)
return NSOrderedAscending;
else if (y1 > y2)
return NSOrderedDescending;
else
return NSOrderedSame;
}
NSSize WrapOrSizeToFit(NSView* view) {
if ([view isKindOfClass:[NSTextField class]]) {
NSTextField* textField = static_cast<NSTextField*>(view);
if ([textField isEditable])
return NSZeroSize;
CGFloat heightChange =
[GTMUILocalizerAndLayoutTweaker sizeToFitFixedWidthTextField:textField];
return NSMakeSize(0.0, heightChange);
}
if ([view isKindOfClass:[NSMatrix class]]) {
NSMatrix* radioGroup = static_cast<NSMatrix*>(view);
[GTMUILocalizerAndLayoutTweaker wrapRadioGroupForWidth:radioGroup];
return [GTMUILocalizerAndLayoutTweaker sizeToFitView:view];
}
if ([view isKindOfClass:[NSButton class]]) {
NSButton* button = static_cast<NSButton*>(view);
NSButtonCell* buttonCell = [button cell];
// Decide it's a checkbox via showsStateBy and highlightsBy.
if (([buttonCell showsStateBy] == NSCellState) &&
([buttonCell highlightsBy] == NSCellState)) {
[GTMUILocalizerAndLayoutTweaker wrapButtonTitleForWidth:button];
return [GTMUILocalizerAndLayoutTweaker sizeToFitView:view];
}
}
return [GTMUILocalizerAndLayoutTweaker sizeToFitView:view];
}
CGFloat VerticallyReflowGroup(NSArray* views) {
views = [views sortedArrayUsingFunction:CompareFrameY
context:NULL];
CGFloat localVerticalShift = 0;
for (NSInteger index = [views count] - 1; index >= 0; --index) {
NSView* view = [views objectAtIndex:index];
NSSize delta = WrapOrSizeToFit(view);
localVerticalShift += delta.height;
if (localVerticalShift) {
NSPoint origin = [view frame].origin;
origin.y -= localVerticalShift;
[view setFrameOrigin:origin];
}
}
return localVerticalShift;
}
NSString* ReplaceNSStringPlaceholders(NSString* formatString,
const base::string16& a,
size_t* offset) {
return base::SysUTF16ToNSString(base::ReplaceStringPlaceholders(
base::SysNSStringToUTF16(formatString), a, offset));
}
NSString* TooltipForURLAndTitle(NSString* url, NSString* title) {
if ([title length] == 0)
return url;
else if ([url length] == 0 || [url isEqualToString:title])
return title;
else
return [NSString stringWithFormat:@"%@\n%@", title, url];
}
bool ShouldDoExperimentalRTLLayout() {
return base::i18n::IsRTL() && base::FeatureList::IsEnabled(features::kMacRTL);
}
bool ShouldFlipWindowControlsInRTL() {
return ShouldDoExperimentalRTLLayout() && base::mac::IsAtLeastOS10_12();
}
// TODO(lgrey): Remove these when deployment target is 10.12.
#if defined(MAC_OS_X_VERSION_10_12) && \
(MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_12)
#warning LeadingCellImagePosition/TrailingCellImagePosition \
should be removed since the deployment target is >= 10.12
#endif
NSCellImagePosition LeadingCellImagePosition() {
#if defined(MAC_OS_X_VERSION_10_12) && \
MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_12
if (@available(macOS 10.12, *)) {
return NSImageLeading;
}
#endif
return ShouldDoExperimentalRTLLayout() ? NSImageRight : NSImageLeft;
}
NSCellImagePosition TrailingCellImagePosition() {
#if defined(MAC_OS_X_VERSION_10_12) && \
MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_12
if (@available(macOS 10.12, *)) {
return NSImageTrailing;
}
#endif
return ShouldDoExperimentalRTLLayout() ? NSImageLeft : NSImageRight;
}
NSRectEdge LeadingEdge() {
return ShouldDoExperimentalRTLLayout() ? NSMaxXEdge : NSMinXEdge;
}
NSRectEdge TrailingEdge() {
return ShouldDoExperimentalRTLLayout() ? NSMinXEdge : NSMaxXEdge;
}
// Adapted from Apple's RTL docs (goo.gl/cBaFnT)
NSImage* FlippedImage(NSImage* image) {
const NSSize size = [image size];
NSImage* flipped_image = [[[NSImage alloc] initWithSize:size] autorelease];
[flipped_image lockFocus];
[[NSGraphicsContext currentContext]
setImageInterpolation:NSImageInterpolationHigh];
NSAffineTransform* transform = [NSAffineTransform transform];
[transform translateXBy:size.width yBy:0];
[transform scaleXBy:-1 yBy:1];
[transform concat];
[image drawAtPoint:NSZeroPoint
fromRect:NSMakeRect(0, 0, size.width, size.height)
operation:NSCompositeSourceOver
fraction:1.0];
[flipped_image unlockFocus];
return flipped_image;
}
void FlipAllSubviewsIfNecessary(NSView* view) {
if (!ShouldDoExperimentalRTLLayout())
return;
CGFloat width = NSWidth([view frame]);
for (NSView* subview in [view subviews]) {
NSRect subviewFrame = [subview frame];
subviewFrame.origin.x =
width - NSWidth(subviewFrame) - NSMinX(subviewFrame);
[subview setFrame:subviewFrame];
BOOL hasMinXMargin = subview.autoresizingMask & NSViewMinXMargin;
BOOL hasMaxXMargin = subview.autoresizingMask & NSViewMaxXMargin;
if (hasMinXMargin && hasMaxXMargin) {
// No-op. Skip reversing autoresizing mask if both horizontal margins
// are flexible.
} else if (hasMinXMargin) {
subview.autoresizingMask &= ~NSViewMinXMargin;
subview.autoresizingMask |= NSViewMaxXMargin;
} else if (hasMaxXMargin) {
subview.autoresizingMask &= ~NSViewMaxXMargin;
subview.autoresizingMask |= NSViewMinXMargin;
}
}
}
} // namespace cocoa_l10n_util