netsurf/cocoa/BrowserView.m

759 lines
19 KiB
Objective-C

/*
* Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#import "cocoa/BrowserView.h"
#import "cocoa/HistoryView.h"
#import "cocoa/font.h"
#import "cocoa/plotter.h"
#import "cocoa/LocalHistoryController.h"
#import "cocoa/BrowserWindowController.h"
#import "desktop/browser_private.h"
#import "desktop/plotters.h"
#import "desktop/textinput.h"
#import "utils/nsoption.h"
#import "utils/messages.h"
#import "content/hlcache.h"
@interface BrowserView ()
@property (readwrite, copy, nonatomic) NSString *markedText;
- (void) scrollHorizontal: (CGFloat) amount;
- (void) scrollVertical: (CGFloat) amount;
- (CGFloat) pageScroll;
+ (void)reformatTimerFired: (NSTimer *) timer;
- (void) reformat;
- (void) popUpContextMenuForEvent: (NSEvent *) event;
- (IBAction) cmOpenURLInTab: (id) sender;
- (IBAction) cmOpenURLInWindow: (id) sender;
- (IBAction) cmDownloadURL: (id) sender;
- (IBAction) cmLinkCopy: (id) sender;
- (IBAction) cmImageCopy: (id) sender;
@end
@implementation BrowserView
@synthesize browser;
@synthesize caretTimer;
@synthesize markedText;
static const CGFloat CaretWidth = 1.0;
static const NSTimeInterval CaretBlinkTime = 0.8;
static NSMutableArray *cocoa_reformat_pending = nil;
- initWithFrame: (NSRect) frame;
{
if ((self = [super initWithFrame: frame]) == nil) return nil;
[self registerForDraggedTypes: [NSArray arrayWithObjects: NSURLPboardType, @"public.url", nil]];
return self;
}
- (void) dealloc;
{
[self setCaretTimer: nil];
[self setMarkedText: nil];
[history release];
[super dealloc];
}
- (void) setCaretTimer: (NSTimer *)newTimer;
{
if (newTimer != caretTimer) {
[caretTimer invalidate];
[caretTimer release];
caretTimer = [newTimer retain];
}
}
- (void) updateHistory;
{
[history redraw];
}
static inline NSRect cocoa_get_caret_rect( BrowserView *view )
{
NSRect caretRect = {
.origin = NSMakePoint( view->caretPoint.x * view->browser->scale, view->caretPoint.y * view->browser->scale ),
.size = NSMakeSize( CaretWidth, view->caretHeight * view->browser->scale )
};
return caretRect;
}
- (void) removeCaret;
{
hasCaret = NO;
[self setNeedsDisplayInRect: cocoa_get_caret_rect( self )];
[self setCaretTimer: nil];
}
- (void) addCaretAt: (NSPoint) point height: (CGFloat) height;
{
if (hasCaret) {
[self setNeedsDisplayInRect: cocoa_get_caret_rect( self )];
}
caretPoint = point;
caretHeight = height;
hasCaret = YES;
caretVisible = YES;
if (nil == caretTimer) {
[self setCaretTimer: [NSTimer scheduledTimerWithTimeInterval: CaretBlinkTime target: self selector: @selector(caretBlink:) userInfo: nil repeats: YES]];
} else {
[caretTimer setFireDate: [NSDate dateWithTimeIntervalSinceNow: CaretBlinkTime]];
}
[self setNeedsDisplayInRect: cocoa_get_caret_rect( self )];
}
- (void) caretBlink: (NSTimer *)timer;
{
if (hasCaret) {
caretVisible = !caretVisible;
[self setNeedsDisplayInRect: cocoa_get_caret_rect( self )];
}
}
- (void)drawRect:(NSRect)dirtyRect;
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
struct redraw_context ctx = {
.interactive = true,
.background_images = true,
.plot = &cocoa_plotters
};
const NSRect *rects = NULL;
NSInteger count = 0;
[self getRectsBeingDrawn: &rects count: &count];
for (NSInteger i = 0; i < count; i++) {
const struct rect clip = {
.x0 = cocoa_pt_to_px( NSMinX( rects[i] ) ),
.y0 = cocoa_pt_to_px( NSMinY( rects[i] ) ),
.x1 = cocoa_pt_to_px( NSMaxX( rects[i] ) ),
.y1 = cocoa_pt_to_px( NSMaxY( rects[i] ) )
};
browser_window_redraw(browser, 0, 0, &clip, &ctx);
}
NSRect caretRect = cocoa_get_caret_rect( self );
if (hasCaret && caretVisible && [self needsToDrawRect: caretRect]) {
[[NSColor blackColor] set];
[NSBezierPath fillRect: caretRect];
}
[pool release];
}
- (BOOL) isFlipped;
{
return YES;
}
- (void) viewDidMoveToWindow;
{
NSTrackingArea *area = [[NSTrackingArea alloc] initWithRect: [self visibleRect]
options: NSTrackingMouseMoved | NSTrackingMouseEnteredAndExited | NSTrackingActiveInKeyWindow | NSTrackingInVisibleRect
owner: self
userInfo: nil];
[self addTrackingArea: area];
[area release];
}
static browser_mouse_state cocoa_mouse_flags_for_event( NSEvent *evt )
{
browser_mouse_state result = 0;
NSUInteger flags = [evt modifierFlags];
if (flags & NSShiftKeyMask) result |= BROWSER_MOUSE_MOD_1;
if (flags & NSAlternateKeyMask) result |= BROWSER_MOUSE_MOD_2;
return result;
}
- (NSPoint) convertMousePoint: (NSEvent *)event;
{
NSPoint location = [self convertPoint: [event locationInWindow] fromView: nil];
if (NULL != browser) {
location.x /= browser->scale;
location.y /= browser->scale;
}
location.x = cocoa_pt_to_px( location.x );
location.y = cocoa_pt_to_px( location.y );
return location;
}
- (void) mouseDown: (NSEvent *)theEvent;
{
if ([theEvent modifierFlags] & NSControlKeyMask) {
[self popUpContextMenuForEvent: theEvent];
return;
}
dragStart = [self convertMousePoint: theEvent];
browser_window_mouse_click( browser, BROWSER_MOUSE_PRESS_1 | cocoa_mouse_flags_for_event( theEvent ), dragStart.x, dragStart.y );
}
- (void) rightMouseDown: (NSEvent *)theEvent;
{
[self popUpContextMenuForEvent: theEvent];
}
- (void) mouseUp: (NSEvent *)theEvent;
{
if (historyVisible) {
[self setHistoryVisible: NO];
return;
}
NSPoint location = [self convertMousePoint: theEvent];
browser_mouse_state modifierFlags = cocoa_mouse_flags_for_event( theEvent );
if (isDragging) {
isDragging = NO;
browser_window_mouse_track( browser, (browser_mouse_state)0, location.x, location.y );
} else {
modifierFlags |= BROWSER_MOUSE_CLICK_1;
if ([theEvent clickCount] == 2) modifierFlags |= BROWSER_MOUSE_DOUBLE_CLICK;
browser_window_mouse_click( browser, modifierFlags, location.x, location.y );
}
}
#define squared(x) ((x)*(x))
#define MinDragDistance (5.0)
- (void) mouseDragged: (NSEvent *)theEvent;
{
NSPoint location = [self convertMousePoint: theEvent];
browser_mouse_state modifierFlags = cocoa_mouse_flags_for_event( theEvent );
if (!isDragging) {
const CGFloat distance = squared( dragStart.x - location.x ) + squared( dragStart.y - location.y );
if (distance >= squared( MinDragDistance)) {
isDragging = YES;
browser_window_mouse_click( browser, BROWSER_MOUSE_DRAG_1 | modifierFlags, dragStart.x, dragStart.y );
}
}
if (isDragging) {
browser_window_mouse_track( browser, BROWSER_MOUSE_HOLDING_1 | BROWSER_MOUSE_DRAG_ON | modifierFlags, location.x, location.y );
}
}
- (void) mouseMoved: (NSEvent *)theEvent;
{
if (historyVisible) return;
NSPoint location = [self convertMousePoint: theEvent];
browser_window_mouse_track( browser, cocoa_mouse_flags_for_event( theEvent ), location.x, location.y );
}
- (void) mouseExited: (NSEvent *) theEvent;
{
[[NSCursor arrowCursor] set];
}
- (void) keyDown: (NSEvent *)theEvent;
{
if (!historyVisible) {
[self interpretKeyEvents: [NSArray arrayWithObject: theEvent]];
} else {
[history keyDown: theEvent];
}
}
- (void) insertText: (id)string;
{
for (NSUInteger i = 0, length = [string length]; i < length; i++) {
unichar ch = [string characterAtIndex: i];
if (!browser_window_key_press( browser, ch )) {
if (ch == ' ') [self scrollPageDown: self];
break;
}
}
[self setMarkedText: nil];
}
- (void) moveLeft: (id)sender;
{
if (browser_window_key_press( browser, KEY_LEFT )) return;
[self scrollHorizontal: -[[self enclosingScrollView] horizontalLineScroll]];
}
- (void) moveRight: (id)sender;
{
if (browser_window_key_press( browser, KEY_RIGHT )) return;
[self scrollHorizontal: [[self enclosingScrollView] horizontalLineScroll]];
}
- (void) moveUp: (id)sender;
{
if (browser_window_key_press( browser, KEY_UP )) return;
[self scrollVertical: -[[self enclosingScrollView] lineScroll]];
}
- (void) moveDown: (id)sender;
{
if (browser_window_key_press( browser, KEY_DOWN )) return;
[self scrollVertical: [[self enclosingScrollView] lineScroll]];
}
- (void) deleteBackward: (id)sender;
{
if (!browser_window_key_press( browser, KEY_DELETE_LEFT )) {
[NSApp sendAction: @selector( goBack: ) to: nil from: self];
}
}
- (void) deleteForward: (id)sender;
{
browser_window_key_press( browser, KEY_DELETE_RIGHT );
}
- (void) cancelOperation: (id)sender;
{
browser_window_key_press( browser, KEY_ESCAPE );
}
- (void) scrollPageUp: (id)sender;
{
if (browser_window_key_press( browser, KEY_PAGE_UP )) return;
[self scrollVertical: -[self pageScroll]];
}
- (void) scrollPageDown: (id)sender;
{
if (browser_window_key_press( browser, KEY_PAGE_DOWN )) return;
[self scrollVertical: [self pageScroll]];
}
- (void) insertTab: (id)sender;
{
browser_window_key_press( browser, KEY_TAB );
}
- (void) insertBacktab: (id)sender;
{
browser_window_key_press( browser, KEY_SHIFT_TAB );
}
- (void) moveToBeginningOfLine: (id)sender;
{
browser_window_key_press( browser, KEY_LINE_START );
}
- (void) moveToEndOfLine: (id)sender;
{
browser_window_key_press( browser, KEY_LINE_END );
}
- (void) moveToBeginningOfDocument: (id)sender;
{
if (browser_window_key_press( browser, KEY_TEXT_START )) return;
}
- (void) scrollToBeginningOfDocument: (id) sender;
{
NSPoint origin = [self visibleRect].origin;
origin.y = 0;
[self scrollPoint: origin];
}
- (void) moveToEndOfDocument: (id)sender;
{
browser_window_key_press( browser, KEY_TEXT_END );
}
- (void) scrollToEndOfDocument: (id) sender;
{
NSPoint origin = [self visibleRect].origin;
origin.y = NSHeight( [self frame] );
[self scrollPoint: origin];
}
- (void) insertNewline: (id)sender;
{
browser_window_key_press( browser, KEY_NL );
}
- (void) selectAll: (id)sender;
{
browser_window_key_press( browser, KEY_SELECT_ALL );
}
- (void) copy: (id) sender;
{
browser_window_key_press( browser, KEY_COPY_SELECTION );
}
- (void) cut: (id) sender;
{
browser_window_key_press( browser, KEY_CUT_SELECTION );
}
- (void) paste: (id) sender;
{
browser_window_key_press( browser, KEY_PASTE );
}
- (BOOL) acceptsFirstResponder;
{
return YES;
}
- (void) adjustFrame;
{
browser->reformat_pending = true;
browser_reformat_pending = true;
if (cocoa_reformat_pending == nil) {
cocoa_reformat_pending = [[NSMutableArray alloc] init];
}
[cocoa_reformat_pending addObject: self];
[super adjustFrame];
}
- (BOOL) isHistoryVisible;
{
return historyVisible;
}
- (void) setHistoryVisible: (BOOL) newVisible;
{
if (newVisible == historyVisible) return;
historyVisible = newVisible;
if (historyVisible) {
if (nil == history) history = [[LocalHistoryController alloc] initWithBrowser: self];
[history attachToView: [(BrowserWindowController *)[[self window] windowController] historyButton]];
} else {
[history detach];
}
}
- (void) scrollHorizontal: (CGFloat) amount;
{
NSPoint currentPoint = [self visibleRect].origin;
currentPoint.x += amount;
[self scrollPoint: currentPoint];
}
- (void) scrollVertical: (CGFloat) amount;
{
NSPoint currentPoint = [self visibleRect].origin;
currentPoint.y += amount;
[self scrollPoint: currentPoint];
}
- (CGFloat) pageScroll;
{
return NSHeight( [[self superview] frame] ) - [[self enclosingScrollView] pageScroll];
}
- (void) reformat;
{
NSRect size = [[self superview] frame];
browser_window_reformat( browser, false, cocoa_pt_to_px( NSWidth( size ) ), cocoa_pt_to_px( NSHeight( size ) ) );
}
+ (void)reformatTimerFired: (NSTimer *) timer;
{
if (browser_reformat_pending) {
[cocoa_reformat_pending makeObjectsPerformSelector: @selector( reformat )];
[cocoa_reformat_pending removeAllObjects];
browser_reformat_pending = false;
}
}
+ (void) initialize;
{
NSTimer *timer = [[NSTimer alloc] initWithFireDate: nil interval: 0.02
target: self selector: @selector(reformatTimerFired:)
userInfo: nil repeats: YES];
[[NSRunLoop currentRunLoop] addTimer: timer forMode: NSRunLoopCommonModes];
[timer release];
}
- (void) popUpContextMenuForEvent: (NSEvent *) event;
{
if (content_get_type( browser->current_content ) != CONTENT_HTML) return;
NSMenu *popupMenu = [[NSMenu alloc] initWithTitle: @""];
NSPoint point = [self convertMousePoint: event];
struct contextual_content cont;
browser_window_get_contextual_content( browser, point.x, point.y, &cont);
if (cont.object != NULL) {
NSString *imageURL = [NSString stringWithUTF8String: nsurl_access(hlcache_handle_get_url( cont.object ))];
[[popupMenu addItemWithTitle: NSLocalizedString( @"Open image in new tab", @"Context menu" )
action: @selector(cmOpenURLInTab:)
keyEquivalent: @""] setRepresentedObject: imageURL];
[[popupMenu addItemWithTitle: NSLocalizedString( @"Open image in new window", @"Context menu" )
action: @selector(cmOpenURLInWindow:)
keyEquivalent: @""] setRepresentedObject: imageURL];
[[popupMenu addItemWithTitle: NSLocalizedString( @"Save image as", @"Context menu" )
action: @selector(cmDownloadURL:)
keyEquivalent: @""] setRepresentedObject: imageURL];
[[popupMenu addItemWithTitle: NSLocalizedString( @"Copy image", @"Context menu" )
action: @selector(cmImageCopy:)
keyEquivalent: @""] setRepresentedObject: (id)content_get_bitmap( cont.object )];
[popupMenu addItem: [NSMenuItem separatorItem]];
}
if (cont.link_url != NULL) {
NSString *target = [NSString stringWithUTF8String: cont.link_url];
[[popupMenu addItemWithTitle: NSLocalizedString( @"Open link in new tab", @"Context menu" )
action: @selector(cmOpenURLInTab:)
keyEquivalent: @""] setRepresentedObject: target];
[[popupMenu addItemWithTitle: NSLocalizedString( @"Open link in new window", @"Context menu" )
action: @selector(cmOpenURLInWindow:)
keyEquivalent: @""] setRepresentedObject: target];
[[popupMenu addItemWithTitle: NSLocalizedString( @"Save link target", @"Context menu" )
action: @selector(cmDownloadURL:)
keyEquivalent: @""] setRepresentedObject: target];
[[popupMenu addItemWithTitle: NSLocalizedString( @"Copy link", @"Context menu" )
action: @selector(cmLinkCopy:)
keyEquivalent: @""] setRepresentedObject: target];
[popupMenu addItem: [NSMenuItem separatorItem]];
}
[popupMenu addItemWithTitle: NSLocalizedString( @"Back", @"Context menu" )
action: @selector(goBack:) keyEquivalent: @""];
[popupMenu addItemWithTitle: NSLocalizedString( @"Reload", @"Context menu" )
action: @selector(reloadPage:) keyEquivalent: @""];
[popupMenu addItemWithTitle: NSLocalizedString( @"Forward", @"Context menu" )
action: @selector(goForward:) keyEquivalent: @""];
[popupMenu addItemWithTitle: NSLocalizedString( @"View Source", @"Context menu" )
action: @selector(viewSource:) keyEquivalent: @""];
[NSMenu popUpContextMenu: popupMenu withEvent: event forView: self];
[popupMenu release];
}
- (IBAction) cmOpenURLInTab: (id) sender;
{
nsurl *url;
nserror error;
error = nsurl_create([[sender representedObject] UTF8String], &url);
if (error == NSERROR_OK) {
error = browser_window_create(BW_CREATE_HISTORY |
BW_CREATE_TAB |
BW_CREATE_CLONE,
url,
NULL,
browser,
NULL);
nsurl_unref(url);
}
if (error != NSERROR_OK) {
warn_user(messages_get_errorcode(error), 0);
}
}
- (IBAction) cmOpenURLInWindow: (id) sender;
{
nsurl *url;
nserror error;
error = nsurl_create([[sender representedObject] UTF8String], &url);
if (error == NSERROR_OK) {
error = browser_window_create(BW_CREATE_HISTORY |
BW_CREATE_CLONE,
url,
NULL,
browser,
NULL);
nsurl_unref(url);
}
if (error != NSERROR_OK) {
warn_user(messages_get_errorcode(error), 0);
}
}
- (IBAction) cmDownloadURL: (id) sender;
{
nsurl *url;
if (nsurl_create([[sender representedObject] UTF8String], &url) == NSERROR_OK) {
browser_window_navigate(browser,
url,
NULL,
BW_NAVIGATE_DOWNLOAD,
NULL,
NULL,
NULL);
nsurl_unref(url);
}
}
- (IBAction) cmImageCopy: (id) sender;
{
NSPasteboard *pb = [NSPasteboard generalPasteboard];
[pb declareTypes: [NSArray arrayWithObject: NSTIFFPboardType] owner: nil];
[pb setData: [[sender representedObject] TIFFRepresentation] forType: NSTIFFPboardType];
}
- (IBAction) cmLinkCopy: (id) sender;
{
NSPasteboard *pb = [NSPasteboard generalPasteboard];
[pb declareTypes: [NSArray arrayWithObject: NSStringPboardType] owner: nil];
[pb setString: [sender representedObject] forType: NSStringPboardType];
}
// MARK: -
// MARK: Accepting dragged URLs
- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
{
if ((NSDragOperationCopy | NSDragOperationGeneric) & [sender draggingSourceOperationMask]) {
return NSDragOperationCopy;
}
return NSDragOperationNone;
}
- (BOOL)prepareForDragOperation:(id <NSDraggingInfo>)sender
{
return YES;
}
- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
{
nsurl *url;
nserror error;
NSPasteboard *pb = [sender draggingPasteboard];
NSString *type = [pb availableTypeFromArray:[NSArray arrayWithObjects: @"public.url", NSURLPboardType, nil]];
NSString *urlstr = nil;
if ([type isEqualToString: NSURLPboardType]) {
urlstr = [[NSURL URLFromPasteboard: pb] absoluteString];
} else {
urlstr = [pb stringForType: type];
}
error = nsurl_create([urlstr UTF8String], &url);
if (error != NSERROR_OK) {
warn_user(messages_get_errorcode(error), 0);
} else {
browser_window_navigate(browser,
url,
NULL,
BW_NAVIGATE_DOWNLOAD,
NULL,
NULL,
NULL);
nsurl_unref(url);
}
return YES;
}
// MARK: -
// MARK: NSTextInput protocol implementation
- (void) setMarkedText: (id) aString selectedRange: (NSRange) selRange
{
[markedText release];
markedText = [aString isEqualToString: @""] ? nil : [aString copy];
}
- (void) unmarkText
{
[self setMarkedText: nil];
}
- (BOOL) hasMarkedText
{
return markedText != nil;
}
- (NSInteger) conversationIdentifier
{
return (NSInteger)self;
}
- (NSAttributedString *) attributedSubstringFromRange: (NSRange) theRange
{
return [[[NSAttributedString alloc] initWithString: @""] autorelease];
}
- (NSRange) markedRange
{
return NSMakeRange( NSNotFound, 0 );
}
- (NSRange) selectedRange
{
return NSMakeRange( NSNotFound, 0 );
}
- (NSRect) firstRectForCharacterRange: (NSRange) theRange
{
return NSZeroRect;
}
- (NSUInteger) characterIndexForPoint: (NSPoint) thePoint
{
return 0;
}
- (NSArray *) validAttributesForMarkedText
{
return [NSArray array];
}
- (void) doCommandBySelector: (SEL) sel;
{
[super doCommandBySelector: sel];
}
@end