Infinite Suggest for mac

chrome/browser/ui/cocoa/omnibox/omnibox_popup_cell.mm

 // Copyright 2013 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/omnibox/omnibox_popup_cell.h"
 
+#include <algorithm>
 #include <cmath>
+#include "base/i18n/rtl.h"
+#include "base/logging.h"
 
 namespace {
 
 // How far to offset image column from the left.
 const CGFloat kImageXOffset = 5.0;
 
 // How far to offset the text column from the left.
 const CGFloat kTextXOffset = 28.0;
 
 // Rounding radius of selection and hover background on popup items.
 const CGFloat kCellRoundingRadius = 2.0;
 
 NSColor* SelectedBackgroundColor() {
   return [NSColor selectedControlColor];
 }
+
 NSColor* HoveredBackgroundColor() {
   return [NSColor controlHighlightColor];
 }
 
+
+// Flips the given |rect| in context of the given |frame|.
+NSRect FlipVertical(NSRect rect, NSRect frame) {
+  NSRect result = rect;
+  // Translate the right margin of rect inside frame to the left margin.
+  result.origin.x = frame.origin.x +
+      ((frame.origin.x + frame.size.width) - (rect.origin.x + rect.size.width));

[Scott Hess - ex-Googler, 2013/12/16 22:22:05]

Try:
  result.origin.x = NSMinX(frame) + (NSMaxX(frame) - NSMaxX(rect));
same results, but a bit more self-documenting.

[Anuj, 2013/12/19 05:36:13]

Done.

+  return result;
+}
+
 }  // namespace
 
 @implementation OmniboxPopupCell
 
+- (void)setRequiredWidth:(CGFloat)requiredWidth {
+  requiredWidth_ = requiredWidth;
+}
+
+- (void)setContentsWidth:(CGFloat)contentsWidth {
+  contentsWidth_ = contentsWidth;
+}
+
+- (void)setMaxRequiredWidth:(CGFloat)maxRequiredWidth {
+  maxRequiredWidth_ = maxRequiredWidth;
+}
+
+- (void)setMaxContentsWidth:(CGFloat)maxContentsWidth {
+  maxContentsWidth_ = maxContentsWidth;
+}
+
 - (id)init {
   self = [super init];
   if (self) {
     [self setImagePosition:NSImageLeft];
     [self setBordered:NO];
     [self setButtonType:NSRadioButton];
 
     // Without this highlighting messes up white areas of images.
     [self setHighlightsBy:NSNoCellMask];
   }
   return self;
 }
 
+- (CGFloat)textOffset:(NSRect)cellFrame {
+  CGFloat offset = (cellFrame.size.width < maxRequiredWidth_ + kTextXOffset) ?
+      (cellFrame.size.width - maxContentsWidth_) :
+      (requiredWidth_ - contentsWidth_);
+  return kTextXOffset + std::max(offset, 0.0f);
+}
+
 // The default NSButtonCell drawing leaves the image flush left and
 // the title next to the image.  This spaces things out to line up
 // with the star button and autocomplete field.
 - (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView *)controlView {
   if ([self state] == NSOnState || [self isHighlighted]) {
     if ([self state] == NSOnState)
       [SelectedBackgroundColor() set];
     else
       [HoveredBackgroundColor() set];
     NSBezierPath* path =
         [NSBezierPath bezierPathWithRoundedRect:cellFrame
                                         xRadius:kCellRoundingRadius
                                         yRadius:kCellRoundingRadius];
     [path fill];
   }
 
+  bool isRTL = base::i18n::IsRTL();
+
   // Put the image centered vertically but in a fixed column.
   NSImage* image = [self image];
   if (image) {
     NSRect imageRect = cellFrame;
     imageRect.size = [image size];
     imageRect.origin.y +=
         std::floor((NSHeight(cellFrame) - NSHeight(imageRect)) / 2.0);
     imageRect.origin.x += kImageXOffset;
+    if (isRTL)
+      imageRect = FlipVertical(imageRect, cellFrame);
     [image drawInRect:imageRect
              fromRect:NSZeroRect  // Entire image
             operation:NSCompositeSourceOver
              fraction:1.0
        respectFlipped:YES
                 hints:nil];
   }
 
   // Adjust the title position to be lined up under the field's text.
   NSAttributedString* title = [self attributedTitle];
   if (title && [title length]) {
     NSRect titleRect = cellFrame;
-    titleRect.size.width -= kTextXOffset;
-    titleRect.origin.x += kTextXOffset;
+    CGFloat textXOffset = [self textOffset:cellFrame];
+    titleRect.size.width -= textXOffset;
+    titleRect.origin.x += textXOffset;
+
+    if (isRTL)
+      titleRect = FlipVertical(titleRect, cellFrame);
     [self drawTitle:title withFrame:titleRect inView:controlView];
   }
 }
 
 @end