electron/atom/browser/ui/cocoa/atom_touch_bar.mm
2017-05-03 20:25:50 +10:00

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// Copyright (c) 2017 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#import "atom/browser/ui/cocoa/atom_touch_bar.h"
#include "atom/common/color_util.h"
#include "atom/common/native_mate_converters/image_converter.h"
#include "base/strings/sys_string_conversions.h"
#include "skia/ext/skia_utils_mac.h"
#include "ui/gfx/image/image.h"
@implementation AtomTouchBar
static NSTouchBarItemIdentifier ButtonIdentifier = @"com.electron.touchbar.button.";
static NSTouchBarItemIdentifier ColorPickerIdentifier = @"com.electron.touchbar.colorpicker.";
static NSTouchBarItemIdentifier GroupIdentifier = @"com.electron.touchbar.group.";
static NSTouchBarItemIdentifier LabelIdentifier = @"com.electron.touchbar.label.";
static NSTouchBarItemIdentifier PopoverIdentifier = @"com.electron.touchbar.popover.";
static NSTouchBarItemIdentifier SliderIdentifier = @"com.electron.touchbar.slider.";
static NSTouchBarItemIdentifier SegmentedControlIdentifier = @"com.electron.touchbar.segmentedcontrol.";
static NSTouchBarItemIdentifier ScrubberIdentifier = @"com.electron.touchbar.scrubber.";
static NSString* const TextScrubberItemIdentifier = @"scrubber.text.item";
static NSString* const ImageScrubberItemIdentifier = @"scrubber.image.item";
- (id)initWithDelegate:(id<NSTouchBarDelegate>)delegate
window:(atom::NativeWindow*)window
settings:(const std::vector<mate::PersistentDictionary>&)settings {
if ((self = [super init])) {
delegate_ = delegate;
window_ = window;
ordered_settings_ = settings;
}
return self;
}
- (NSTouchBar*)makeTouchBar {
NSMutableArray* identifiers = [self identifiersFromSettings:ordered_settings_];
return [self touchBarFromItemIdentifiers:identifiers];
}
- (NSTouchBar*)touchBarFromItemIdentifiers:(NSMutableArray*)items {
base::scoped_nsobject<NSTouchBar> bar(
[[NSClassFromString(@"NSTouchBar") alloc] init]);
[bar setDelegate:delegate_];
[bar setDefaultItemIdentifiers:items];
return bar.autorelease();
}
- (NSMutableArray*)identifiersFromSettings:(const std::vector<mate::PersistentDictionary>&)dicts {
NSMutableArray* identifiers = [NSMutableArray array];
for (const auto& item : dicts) {
std::string type;
std::string item_id;
if (item.Get("type", &type) && item.Get("id", &item_id)) {
NSTouchBarItemIdentifier identifier = nil;
if (type == "spacer") {
std::string size;
item.Get("size", &size);
if (size == "large") {
identifier = NSTouchBarItemIdentifierFixedSpaceLarge;
} else if (size == "flexible") {
identifier = NSTouchBarItemIdentifierFlexibleSpace;
} else {
identifier = NSTouchBarItemIdentifierFixedSpaceSmall;
}
} else {
identifier = [self identifierFromID:item_id type:type];
}
if (identifier) {
settings_[item_id] = item;
[identifiers addObject:identifier];
}
}
}
[identifiers addObject:NSTouchBarItemIdentifierOtherItemsProxy];
return identifiers;
}
- (NSTouchBarItem*)makeItemForIdentifier:(NSTouchBarItemIdentifier)identifier {
NSString* item_id = nil;
if ([identifier hasPrefix:ButtonIdentifier]) {
item_id = [self idFromIdentifier:identifier withPrefix:ButtonIdentifier];
return [self makeButtonForID:item_id withIdentifier:identifier];
} else if ([identifier hasPrefix:LabelIdentifier]) {
item_id = [self idFromIdentifier:identifier withPrefix:LabelIdentifier];
return [self makeLabelForID:item_id withIdentifier:identifier];
} else if ([identifier hasPrefix:ColorPickerIdentifier]) {
item_id = [self idFromIdentifier:identifier withPrefix:ColorPickerIdentifier];
return [self makeColorPickerForID:item_id withIdentifier:identifier];
} else if ([identifier hasPrefix:SliderIdentifier]) {
item_id = [self idFromIdentifier:identifier withPrefix:SliderIdentifier];
return [self makeSliderForID:item_id withIdentifier:identifier];
} else if ([identifier hasPrefix:PopoverIdentifier]) {
item_id = [self idFromIdentifier:identifier withPrefix:PopoverIdentifier];
return [self makePopoverForID:item_id withIdentifier:identifier];
} else if ([identifier hasPrefix:GroupIdentifier]) {
item_id = [self idFromIdentifier:identifier withPrefix:GroupIdentifier];
return [self makeGroupForID:item_id withIdentifier:identifier];
} else if ([identifier hasPrefix:SegmentedControlIdentifier]) {
item_id = [self idFromIdentifier:identifier withPrefix:SegmentedControlIdentifier];
return [self makeSegmentedControlForID:item_id withIdentifier:identifier];
} else if ([identifier hasPrefix:ScrubberIdentifier]) {
item_id = [self idFromIdentifier:identifier withPrefix:ScrubberIdentifier];
return [self makeScrubberForID:item_id withIdentifier:identifier];
}
return nil;
}
- (void)refreshTouchBarItem:(NSTouchBar*)touchBar
id:(NSTouchBarItemIdentifier)identifier
withType:(const std::string&)item_type
withSettings:(const mate::PersistentDictionary&)settings {
NSTouchBarItem* item = [touchBar itemForIdentifier:identifier];
if (!item) return;
if (item_type == "button") {
[self updateButton:(NSCustomTouchBarItem*)item withSettings:settings];
} else if (item_type == "label") {
[self updateLabel:(NSCustomTouchBarItem*)item withSettings:settings];
} else if (item_type == "colorpicker") {
[self updateColorPicker:(NSColorPickerTouchBarItem*)item
withSettings:settings];
} else if (item_type == "slider") {
[self updateSlider:(NSSliderTouchBarItem*)item withSettings:settings];
} else if (item_type == "popover") {
[self updatePopover:(NSPopoverTouchBarItem*)item withSettings:settings];
} else if (item_type == "segmented_control") {
[self updateSegmentedControl:(NSCustomTouchBarItem*)item withSettings:settings];
} else if (item_type == "scrubber") {
[self updateScrubber:(NSCustomTouchBarItem*)item withSettings:settings];
}
}
- (void)addNonDefaultTouchBarItems:(const std::vector<mate::PersistentDictionary>&)items {
[self identifiersFromSettings:items];
}
- (void)setEscapeTouchBarItem:(const mate::PersistentDictionary&)item forTouchBar:(NSTouchBar*)touchBar {
std::string type;
std::string item_id;
NSTouchBarItemIdentifier identifier = nil;
if (item.Get("type", &type) && item.Get("id", &item_id)) {
identifier = [self identifierFromID:item_id type:type];
}
if (identifier) {
[self addNonDefaultTouchBarItems:{ item }];
touchBar.escapeKeyReplacementItemIdentifier = identifier;
} else {
touchBar.escapeKeyReplacementItemIdentifier = nil;
}
}
- (void)refreshTouchBarItem:(NSTouchBar*)touchBar
id:(const std::string&)item_id {
if (![self hasItemWithID:item_id]) return;
mate::PersistentDictionary settings = settings_[item_id];
std::string item_type;
settings.Get("type", &item_type);
auto identifier = [self identifierFromID:item_id type:item_type];
if (!identifier) return;
std::vector<std::string> popover_ids;
settings.Get("_popover", &popover_ids);
for (auto& popover_id : popover_ids) {
auto popoverIdentifier = [self identifierFromID:popover_id type:"popover"];
if (!popoverIdentifier) continue;
NSPopoverTouchBarItem* popoverItem =
[touchBar itemForIdentifier:popoverIdentifier];
[self refreshTouchBarItem:popoverItem.popoverTouchBar
id:identifier
withType:item_type
withSettings:settings];
}
[self refreshTouchBarItem:touchBar
id:identifier
withType:item_type
withSettings:settings];
}
- (void)buttonAction:(id)sender {
NSString* item_id = [NSString stringWithFormat:@"%ld", ((NSButton*)sender).tag];
window_->NotifyTouchBarItemInteraction([item_id UTF8String],
base::DictionaryValue());
}
- (void)colorPickerAction:(id)sender {
NSString* identifier = ((NSColorPickerTouchBarItem*)sender).identifier;
NSString* item_id = [self idFromIdentifier:identifier
withPrefix:ColorPickerIdentifier];
NSColor* color = ((NSColorPickerTouchBarItem*)sender).color;
std::string hex_color = atom::ToRGBHex(skia::NSDeviceColorToSkColor(color));
base::DictionaryValue details;
details.SetString("color", hex_color);
window_->NotifyTouchBarItemInteraction([item_id UTF8String], details);
}
- (void)sliderAction:(id)sender {
NSString* identifier = ((NSSliderTouchBarItem*)sender).identifier;
NSString* item_id = [self idFromIdentifier:identifier
withPrefix:SliderIdentifier];
base::DictionaryValue details;
details.SetInteger("value",
[((NSSliderTouchBarItem*)sender).slider intValue]);
window_->NotifyTouchBarItemInteraction([item_id UTF8String], details);
}
- (NSString*)idFromIdentifier:(NSString*)identifier
withPrefix:(NSString*)prefix {
return [identifier substringFromIndex:[prefix length]];
}
- (void)segmentedControlAction:(id)sender {
NSString* item_id = [NSString stringWithFormat:@"%ld", ((NSSegmentedControl*)sender).tag];
base::DictionaryValue details;
details.SetInteger("selectedIndex", ((NSSegmentedControl*)sender).selectedSegment);
details.SetBoolean("isSelected", [((NSSegmentedControl*)sender) isSelectedForSegment:((NSSegmentedControl*)sender).selectedSegment]);
window_->NotifyTouchBarItemInteraction([item_id UTF8String],
details);
}
- (void)scrubber:(NSScrubber*)scrubber didSelectItemAtIndex:(NSInteger)selectedIndex {
base::DictionaryValue details;
details.SetInteger("selectedIndex", selectedIndex);
details.SetString("type", "select");
window_->NotifyTouchBarItemInteraction([scrubber.identifier UTF8String], details);
}
- (void)scrubber:(NSScrubber*)scrubber didHighlightItemAtIndex:(NSInteger)highlightedIndex {
base::DictionaryValue details;
details.SetInteger("highlightedIndex", highlightedIndex);
details.SetString("type", "highlight");
window_->NotifyTouchBarItemInteraction([scrubber.identifier UTF8String], details);
}
- (NSTouchBarItemIdentifier)identifierFromID:(const std::string&)item_id
type:(const std::string&)type {
NSTouchBarItemIdentifier base_identifier = nil;
if (type == "button")
base_identifier = ButtonIdentifier;
else if (type == "label")
base_identifier = LabelIdentifier;
else if (type == "colorpicker")
base_identifier = ColorPickerIdentifier;
else if (type == "slider")
base_identifier = SliderIdentifier;
else if (type == "popover")
base_identifier = PopoverIdentifier;
else if (type == "group")
base_identifier = GroupIdentifier;
else if (type == "segmented_control")
base_identifier = SegmentedControlIdentifier;
else if (type == "scrubber")
base_identifier = ScrubberIdentifier;
if (base_identifier)
return [NSString stringWithFormat:@"%@%s", base_identifier, item_id.data()];
else
return nil;
}
- (bool)hasItemWithID:(const std::string&)item_id {
return settings_.find(item_id) != settings_.end();
}
- (NSColor*)colorFromHexColorString:(const std::string&)colorString {
SkColor color = atom::ParseHexColor(colorString);
return skia::SkColorToDeviceNSColor(color);
}
- (NSTouchBarItem*)makeButtonForID:(NSString*)id
withIdentifier:(NSString*)identifier {
std::string s_id([id UTF8String]);
if (![self hasItemWithID:s_id]) return nil;
mate::PersistentDictionary settings = settings_[s_id];
base::scoped_nsobject<NSCustomTouchBarItem> item([[NSClassFromString(
@"NSCustomTouchBarItem") alloc] initWithIdentifier:identifier]);
NSButton* button = [NSButton buttonWithTitle:@""
target:self
action:@selector(buttonAction:)];
button.tag = [id floatValue];
[item setView:button];
[self updateButton:item withSettings:settings];
return item.autorelease();
}
- (void)updateButton:(NSCustomTouchBarItem*)item
withSettings:(const mate::PersistentDictionary&)settings {
NSButton* button = (NSButton*)item.view;
std::string backgroundColor;
if (settings.Get("backgroundColor", &backgroundColor)) {
button.bezelColor = [self colorFromHexColorString:backgroundColor];
}
std::string label;
settings.Get("label", &label);
button.title = base::SysUTF8ToNSString(label);
gfx::Image image;
if (settings.Get("icon", &image)) {
button.image = image.AsNSImage();
std::string iconPosition;
settings.Get("iconPosition", &iconPosition);
if (iconPosition == "left") {
button.imagePosition = NSImageLeft;
} else if (iconPosition == "right") {
button.imagePosition = NSImageRight;
} else {
button.imagePosition = NSImageOverlaps;
}
}
}
- (NSTouchBarItem*)makeLabelForID:(NSString*)id
withIdentifier:(NSString*)identifier {
std::string s_id([id UTF8String]);
if (![self hasItemWithID:s_id]) return nil;
mate::PersistentDictionary settings = settings_[s_id];
base::scoped_nsobject<NSCustomTouchBarItem> item([[NSClassFromString(
@"NSCustomTouchBarItem") alloc] initWithIdentifier:identifier]);
[item setView:[NSTextField labelWithString:@""]];
[self updateLabel:item withSettings:settings];
return item.autorelease();
}
- (void)updateLabel:(NSCustomTouchBarItem*)item
withSettings:(const mate::PersistentDictionary&)settings {
NSTextField* text_field = (NSTextField*)item.view;
std::string label;
settings.Get("label", &label);
text_field.stringValue = base::SysUTF8ToNSString(label);
std::string textColor;
if (settings.Get("textColor", &textColor) && !textColor.empty()) {
text_field.textColor = [self colorFromHexColorString:textColor];
} else {
text_field.textColor = nil;
}
}
- (NSTouchBarItem*)makeColorPickerForID:(NSString*)id
withIdentifier:(NSString*)identifier {
std::string s_id([id UTF8String]);
if (![self hasItemWithID:s_id]) return nil;
mate::PersistentDictionary settings = settings_[s_id];
base::scoped_nsobject<NSColorPickerTouchBarItem> item([[NSClassFromString(
@"NSColorPickerTouchBarItem") alloc] initWithIdentifier:identifier]);
[item setTarget:self];
[item setAction:@selector(colorPickerAction:)];
[self updateColorPicker:item withSettings:settings];
return item.autorelease();
}
- (void)updateColorPicker:(NSColorPickerTouchBarItem*)item
withSettings:(const mate::PersistentDictionary&)settings {
std::vector<std::string> colors;
if (settings.Get("availableColors", &colors) && !colors.empty()) {
NSColorList* color_list = [[[NSColorList alloc] initWithName:@""] autorelease];
for (size_t i = 0; i < colors.size(); ++i) {
[color_list insertColor:[self colorFromHexColorString:colors[i]]
key:base::SysUTF8ToNSString(colors[i])
atIndex:i];
}
item.colorList = color_list;
}
std::string selectedColor;
if (settings.Get("selectedColor", &selectedColor)) {
item.color = [self colorFromHexColorString:selectedColor];
}
}
- (NSTouchBarItem*)makeSliderForID:(NSString*)id
withIdentifier:(NSString*)identifier {
std::string s_id([id UTF8String]);
if (![self hasItemWithID:s_id]) return nil;
mate::PersistentDictionary settings = settings_[s_id];
base::scoped_nsobject<NSSliderTouchBarItem> item([[NSClassFromString(
@"NSSliderTouchBarItem") alloc] initWithIdentifier:identifier]);
[item setTarget:self];
[item setAction:@selector(sliderAction:)];
[self updateSlider:item withSettings:settings];
return item.autorelease();
}
- (void)updateSlider:(NSSliderTouchBarItem*)item
withSettings:(const mate::PersistentDictionary&)settings {
std::string label;
settings.Get("label", &label);
item.label = base::SysUTF8ToNSString(label);
int maxValue = 100;
int minValue = 0;
int value = 50;
settings.Get("minValue", &minValue);
settings.Get("maxValue", &maxValue);
settings.Get("value", &value);
item.slider.minValue = minValue;
item.slider.maxValue = maxValue;
item.slider.doubleValue = value;
}
- (NSTouchBarItem*)makePopoverForID:(NSString*)id
withIdentifier:(NSString*)identifier {
std::string s_id([id UTF8String]);
if (![self hasItemWithID:s_id]) return nil;
mate::PersistentDictionary settings = settings_[s_id];
base::scoped_nsobject<NSPopoverTouchBarItem> item([[NSClassFromString(
@"NSPopoverTouchBarItem") alloc] initWithIdentifier:identifier]);
[self updatePopover:item withSettings:settings];
return item.autorelease();
}
- (void)updatePopover:(NSPopoverTouchBarItem*)item
withSettings:(const mate::PersistentDictionary&)settings {
std::string label;
settings.Get("label", &label);
item.collapsedRepresentationLabel = base::SysUTF8ToNSString(label);
gfx::Image image;
if (settings.Get("icon", &image)) {
item.collapsedRepresentationImage = image.AsNSImage();
}
bool showCloseButton = true;
settings.Get("showCloseButton", &showCloseButton);
item.showsCloseButton = showCloseButton;
mate::PersistentDictionary child;
std::vector<mate::PersistentDictionary> items;
if (settings.Get("child", &child) && child.Get("ordereredItems", &items)) {
item.popoverTouchBar = [self touchBarFromItemIdentifiers:[self identifiersFromSettings:items]];
}
}
- (NSTouchBarItem*)makeGroupForID:(NSString*)id
withIdentifier:(NSString*)identifier {
std::string s_id([id UTF8String]);
if (![self hasItemWithID:s_id]) return nil;
mate::PersistentDictionary settings = settings_[s_id];
mate::PersistentDictionary child;
if (!settings.Get("child", &child)) return nil;
std::vector<mate::PersistentDictionary> items;
if (!child.Get("ordereredItems", &items)) return nil;
NSMutableArray* generatedItems = [NSMutableArray array];
NSMutableArray* identifiers = [self identifiersFromSettings:items];
for (NSUInteger i = 0; i < [identifiers count]; ++i) {
if ([identifiers objectAtIndex:i] != NSTouchBarItemIdentifierOtherItemsProxy) {
NSTouchBarItem* generatedItem = [self makeItemForIdentifier:[identifiers objectAtIndex:i]];
if (generatedItem) {
[generatedItems addObject:generatedItem];
}
}
}
return [NSClassFromString(@"NSGroupTouchBarItem") groupItemWithIdentifier:identifier
items:generatedItems];
}
- (NSTouchBarItem*)makeSegmentedControlForID:(NSString*)id
withIdentifier:(NSString*)identifier {
std::string s_id([id UTF8String]);
if (![self hasItemWithID:s_id]) return nil;
mate::PersistentDictionary settings = settings_[s_id];
base::scoped_nsobject<NSCustomTouchBarItem> item([[NSClassFromString(
@"NSCustomTouchBarItem") alloc] initWithIdentifier:identifier]);
NSSegmentedControl* control = [NSSegmentedControl segmentedControlWithLabels:[NSMutableArray array]
trackingMode:NSSegmentSwitchTrackingSelectOne
target:self
action:@selector(segmentedControlAction:)];
control.tag = [id floatValue];
[item setView:control];
[self updateSegmentedControl:item withSettings:settings];
return item.autorelease();
}
- (void)updateSegmentedControl:(NSCustomTouchBarItem*)item
withSettings:(const mate::PersistentDictionary&)settings {
NSSegmentedControl* control = item.view;
std::string segmentStyle;
settings.Get("segmentStyle", &segmentStyle);
if (segmentStyle == "rounded")
control.segmentStyle = NSSegmentStyleRounded;
else if (segmentStyle == "textured-rounded")
control.segmentStyle = NSSegmentStyleTexturedRounded;
else if (segmentStyle == "round-rect")
control.segmentStyle = NSSegmentStyleRoundRect;
else if (segmentStyle == "textured-square")
control.segmentStyle = NSSegmentStyleTexturedSquare;
else if (segmentStyle == "capsule")
control.segmentStyle = NSSegmentStyleCapsule;
else if (segmentStyle == "small-square")
control.segmentStyle = NSSegmentStyleSmallSquare;
else if (segmentStyle == "separated")
control.segmentStyle = NSSegmentStyleSeparated;
else
control.segmentStyle = NSSegmentStyleAutomatic;
std::string segmentMode;
settings.Get("mode", &segmentMode);
if (segmentMode == "multiple")
control.trackingMode = NSSegmentSwitchTrackingSelectAny;
else if (segmentMode == "buttons")
control.trackingMode = NSSegmentSwitchTrackingMomentary;
else
control.trackingMode = NSSegmentSwitchTrackingSelectOne;
std::vector<mate::Dictionary> segments;
settings.Get("segments", &segments);
control.segmentCount = segments.size();
for (size_t i = 0; i < segments.size(); ++i) {
std::string label;
gfx::Image image;
bool enabled = true;
segments[i].Get("enabled", &enabled);
if (segments[i].Get("label", &label)) {
[control setLabel:base::SysUTF8ToNSString(label) forSegment:i];
} else if (segments[i].Get("icon", &image)) {
[control setImage:image.AsNSImage() forSegment:i];
[control setImageScaling:NSImageScaleProportionallyUpOrDown forSegment:i];
}
[control setEnabled:enabled forSegment:i];
}
int selectedIndex = 0;
settings.Get("selectedIndex", &selectedIndex);
if (selectedIndex >= 0 && selectedIndex < control.segmentCount)
control.selectedSegment = selectedIndex;
}
- (NSTouchBarItem*)makeScrubberForID:(NSString*)id
withIdentifier:(NSString*)identifier {
std::string s_id([id UTF8String]);
if (![self hasItemWithID:s_id]) return nil;
mate::PersistentDictionary settings = settings_[s_id];
base::scoped_nsobject<NSCustomTouchBarItem> item([[NSClassFromString(
@"NSCustomTouchBarItem") alloc] initWithIdentifier:identifier]);
NSScrubber* scrubber = [[[NSClassFromString(@"NSScrubber") alloc] initWithFrame:NSZeroRect] autorelease];
[scrubber registerClass:NSClassFromString(@"NSScrubberTextItemView") forItemIdentifier:TextScrubberItemIdentifier];
[scrubber registerClass:NSClassFromString(@"NSScrubberImageItemView") forItemIdentifier:ImageScrubberItemIdentifier];
scrubber.delegate = self;
scrubber.dataSource = self;
scrubber.identifier = id;
[item setView:scrubber];
[self updateScrubber:item withSettings:settings];
return item.autorelease();
}
- (void)updateScrubber:(NSCustomTouchBarItem*)item
withSettings:(const mate::PersistentDictionary&)settings {
NSScrubber* scrubber = item.view;
bool showsArrowButtons = false;
settings.Get("showArrowButtons", &showsArrowButtons);
scrubber.showsArrowButtons = showsArrowButtons;
std::string selectedStyle;
std::string overlayStyle;
settings.Get("selectedStyle", &selectedStyle);
settings.Get("overlayStyle", &overlayStyle);
if (selectedStyle == "outline") {
scrubber.selectionBackgroundStyle = [NSClassFromString(@"NSScrubberSelectionStyle") outlineOverlayStyle];
} else if (selectedStyle == "background") {
scrubber.selectionBackgroundStyle = [NSClassFromString(@"NSScrubberSelectionStyle") roundedBackgroundStyle];
} else {
scrubber.selectionBackgroundStyle = nil;
}
if (overlayStyle == "outline") {
scrubber.selectionOverlayStyle = [NSClassFromString(@"NSScrubberSelectionStyle") outlineOverlayStyle];
} else if (overlayStyle == "background") {
scrubber.selectionOverlayStyle = [NSClassFromString(@"NSScrubberSelectionStyle") roundedBackgroundStyle];
} else {
scrubber.selectionOverlayStyle = nil;
}
std::string mode;
settings.Get("mode", &mode);
if (mode == "fixed") {
scrubber.mode = NSScrubberModeFixed;
} else {
scrubber.mode = NSScrubberModeFree;
}
bool continuous = true;
settings.Get("continuous", &continuous);
scrubber.continuous = continuous;
[scrubber reloadData];
}
- (NSInteger)numberOfItemsForScrubber:(NSScrubber*)scrubber {
std::string s_id([[scrubber identifier] UTF8String]);
if (![self hasItemWithID:s_id]) return 0;
mate::PersistentDictionary settings = settings_[s_id];
std::vector<mate::PersistentDictionary> items;
settings.Get("items", &items);
return items.size();
}
- (NSScrubberItemView*)scrubber:(NSScrubber*)scrubber
viewForItemAtIndex:(NSInteger)index {
std::string s_id([[scrubber identifier] UTF8String]);
if (![self hasItemWithID:s_id]) return nil;
mate::PersistentDictionary settings = settings_[s_id];
std::vector<mate::PersistentDictionary> items;
if (!settings.Get("items", &items)) return nil;
if (index >= static_cast<NSInteger>(items.size())) return nil;
mate::PersistentDictionary item = items[index];
NSScrubberItemView* itemView;
std::string title;
if (item.Get("label", &title)) {
NSScrubberTextItemView* view = [scrubber makeItemWithIdentifier:TextScrubberItemIdentifier
owner:self];
view.title = base::SysUTF8ToNSString(title);
itemView = view;
} else {
NSScrubberImageItemView* view = [scrubber makeItemWithIdentifier:ImageScrubberItemIdentifier
owner:self];
gfx::Image image;
if (item.Get("icon", &image)) {
view.image = image.AsNSImage();
}
itemView = view;
}
return itemView;
}
@end