15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef CHROME_BROWSER_UI_COCOA_URL_DROP_TARGET_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define CHROME_BROWSER_UI_COCOA_URL_DROP_TARGET_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#import <Cocoa/Cocoa.h> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)@protocol URLDropTarget; 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)@protocol URLDropTargetController; 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Object which coordinates the dropping of URLs on a given view, sending data 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// and updates to a controller. 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)@interface URLDropTargetHandler : NSObject { 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) @private 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NSView<URLDropTarget>* view_; // weak 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Returns an array of drag types that can be handled. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)+ (NSArray*)handledDragTypes; 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Initialize the given view, which must implement the |URLDropTarget| (below), 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// to accept drops of URLs. 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (id)initWithView:(NSView<URLDropTarget>*)view; 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The owner view should implement the following methods by calling the 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// |URLDropTargetHandler|'s version, and leave the others to the default 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// implementation provided by |NSView|/|NSWindow|. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)sender; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (void)draggingExited:(id<NSDraggingInfo>)sender; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (BOOL)performDragOperation:(id<NSDraggingInfo>)sender; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)@end // @interface URLDropTargetHandler 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Protocol which views that are URL drop targets and use |URLDropTargetHandler| 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// must implement. 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)@protocol URLDropTarget 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Returns the controller which handles the drop. 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (id<URLDropTargetController>)urlDropController; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The following, which come from |NSDraggingDestination|, must be implemented 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// by calling the |URLDropTargetHandler|'s implementations. 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)sender; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (void)draggingExited:(id<NSDraggingInfo>)sender; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (BOOL)performDragOperation:(id<NSDraggingInfo>)sender; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)@end // @protocol URLDropTarget 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Protocol for the controller which handles the actual drop data/drop updates. 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)@protocol URLDropTargetController 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Determines whether the given drag and drop operation contains content that 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// is supported by the web view. In particular, if the content is a local file 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// URL, this checks if it is of a type that can be shown in the tab contents. 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (BOOL)isUnsupportedDropData:(id<NSDraggingInfo>)info; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The given URLs (an |NSArray| of |NSString|s) were dropped in the given view 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// at the given point (in that view's coordinates). 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (void)dropURLs:(NSArray*)urls inView:(NSView*)view at:(NSPoint)point; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The given text was dropped in the given view at the given point (in that 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// view's coordinates). 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (void)dropText:(NSString*)text inView:(NSView*)view at:(NSPoint)point; 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Dragging is in progress over the owner view (at the given point, in view 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// coordinates) and any indicator of location -- e.g., an arrow -- should be 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// updated/shown. 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (void)indicateDropURLsInView:(NSView*)view at:(NSPoint)point; 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Dragging is over, and any indicator should be hidden. 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)- (void)hideDropURLsIndicatorInView:(NSView*)view; 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)@end // @protocol URLDropTargetController 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CHROME_BROWSER_UI_COCOA_URL_DROP_TARGET_H_ 80