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views: Support accelerators in MenuButton label (issue #2102)

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This commit is contained in:
Marshall Greenblatt
2017-02-23 15:24:45 -05:00
parent 6eaf11f07a
commit 16125bdbbd
11 changed files with 226 additions and 5 deletions
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97
patch/patches/views_menu_2102.patch
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@@ -26,6 +26,103 @@ index 0755f27..72db677 100644
// Called when the menu is about to be shown.
virtual void MenuWillShow() {}
diff --git ui/views/controls/label.cc ui/views/controls/label.cc
index 9b04c09..5d99c81 100644
--- ui/views/controls/label.cc
+++ ui/views/controls/label.cc
@@ -28,6 +28,7 @@
#include "ui/gfx/color_utils.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/gfx/text_elider.h"
+#include "ui/gfx/text_utils.h"
#include "ui/native_theme/native_theme.h"
#include "ui/strings/grit/ui_strings.h"
#include "ui/views/controls/menu/menu_runner.h"
@@ -36,6 +37,25 @@
#include "ui/views/selection_controller.h"
namespace views {
+
+namespace {
+
+// Strips accelerator character prefixes in |text| if needed, based on |flags|.
+// Returns a range in |text| to underline or Range::InvalidRange() if
+// underlining is not needed.
+gfx::Range StripAcceleratorChars(int flags, base::string16* text) {
+ if (flags & (gfx::Canvas::SHOW_PREFIX | gfx::Canvas::HIDE_PREFIX)) {
+ int char_pos = -1;
+ int char_span = 0;
+ *text = gfx::RemoveAcceleratorChar(*text, '&', &char_pos, &char_span);
+ if ((flags & gfx::Canvas::SHOW_PREFIX) && char_pos != -1)
+ return gfx::Range(char_pos, char_pos + char_span);
+ }
+ return gfx::Range::InvalidRange();
+}
+
+} // namespace
+
// static
const char Label::kViewClassName[] = "Label";
const int Label::kFocusBorderPadding = 1;
@@ -210,6 +230,14 @@ void Label::SetElideBehavior(gfx::ElideBehavior elide_behavior) {
ResetLayout();
}
+void Label::SetDrawStringsFlags(int flags) {
+ if (draw_strings_flags_ == flags)
+ return;
+ is_first_paint_text_ = true;
+ draw_strings_flags_ = flags;
+ ResetLayout();
+}
+
void Label::SetTooltipText(const base::string16& tooltip_text) {
DCHECK(handles_tooltips_);
tooltip_text_ = tooltip_text;
@@ -440,7 +468,19 @@ std::unique_ptr<gfx::RenderText> Label::CreateRenderText(
render_text->SetFontList(font_list());
render_text->set_shadows(shadows());
render_text->SetCursorEnabled(false);
- render_text->SetText(text);
+
+ if (draw_strings_flags_ != 0) {
+ base::string16 text_str = text;
+ gfx::Range range = StripAcceleratorChars(draw_strings_flags_, &text_str);
+ render_text->SetText(text_str);
+ if (range.IsValid()) {
+ render_text->SetDisplayRect(bounds());
+ render_text->ApplyStyle(gfx::UNDERLINE, true, range);
+ }
+ } else {
+ render_text->SetText(text);
+ }
+
return render_text;
}
diff --git ui/views/controls/label.h ui/views/controls/label.h
index 6293cff..d0a5a8f 100644
--- ui/views/controls/label.h
+++ ui/views/controls/label.h
@@ -117,6 +117,10 @@ class VIEWS_EXPORT Label : public View,
void SetElideBehavior(gfx::ElideBehavior elide_behavior);
gfx::ElideBehavior elide_behavior() const { return elide_behavior_; }
+ // Get or set the flags that control display of accelerator characters.
+ void SetDrawStringsFlags(int flags);
+ int draw_strings_flags() const { return draw_strings_flags_; }
+
// Sets the tooltip text. Default behavior for a label (single-line) is to
// show the full text if it is wider than its bounds. Calling this overrides
// the default behavior and lets you set a custom tooltip. To revert to
@@ -333,6 +337,7 @@ class VIEWS_EXPORT Label : public View,
bool collapse_when_hidden_;
int fixed_width_;
int max_width_;
+ int draw_strings_flags_ = 0;
// TODO(ckocagil): Remove is_first_paint_text_ before crbug.com/441028 is
// closed.
diff --git ui/views/controls/menu/menu_controller.cc ui/views/controls/menu/menu_controller.cc
index 79ff77c..a0582c0 100644
--- ui/views/controls/menu/menu_controller.cc