Port macOS client to C++ (#1830)

* Rename all .m (Obj-C) files to .mm (Obj-C++)

* Fix build in Obj-C++ mode

* Fix Xcode build

macosx/InfoFileViewController.mm

@@ -0,0 +1,254 @@
+/******************************************************************************
+ * Copyright (c) 2010-2012 Transmission authors and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *****************************************************************************/
+
+#import "InfoFileViewController.h"
+#import "FileListNode.h"
+#import "FileOutlineController.h"
+#import "FileOutlineView.h"
+#import "Torrent.h"
+
+@interface InfoFileViewController (Private)
+
+- (void)setupInfo;
+
+- (BOOL)canQuickLookFile:(FileListNode*)item;
+
+@end
+
+@implementation InfoFileViewController
+
+- (instancetype)init
+{
+    if ((self = [super initWithNibName:@"InfoFileView" bundle:nil]))
+    {
+        self.title = NSLocalizedString(@"Files", "Inspector view -> title");
+    }
+
+    return self;
+}
+
+- (void)awakeFromNib
+{
+    CGFloat const height = [NSUserDefaults.standardUserDefaults floatForKey:@"InspectorContentHeightFiles"];
+    if (height != 0.0)
+    {
+        NSRect viewRect = self.view.frame;
+        viewRect.size.height = height;
+        self.view.frame = viewRect;
+    }
+
+    [fFileFilterField.cell setPlaceholderString:NSLocalizedString(@"Filter", "inspector -> file filter")];
+
+    //localize and place all and none buttons
+    fCheckAllButton.title = NSLocalizedString(@"All", "inspector -> check all");
+    fUncheckAllButton.title = NSLocalizedString(@"None", "inspector -> check all");
+
+    NSRect checkAllFrame = fCheckAllButton.frame;
+    NSRect uncheckAllFrame = fUncheckAllButton.frame;
+    CGFloat const oldAllWidth = checkAllFrame.size.width;
+    CGFloat const oldNoneWidth = uncheckAllFrame.size.width;
+
+    [fCheckAllButton sizeToFit];
+    [fUncheckAllButton sizeToFit];
+    CGFloat const newWidth = MAX(fCheckAllButton.bounds.size.width, fUncheckAllButton.bounds.size.width);
+
+    CGFloat const uncheckAllChange = newWidth - oldNoneWidth;
+    uncheckAllFrame.size.width = newWidth;
+    uncheckAllFrame.origin.x -= uncheckAllChange;
+    fUncheckAllButton.frame = uncheckAllFrame;
+
+    CGFloat const checkAllChange = newWidth - oldAllWidth;
+    checkAllFrame.size.width = newWidth;
+    checkAllFrame.origin.x -= (checkAllChange + uncheckAllChange);
+    fCheckAllButton.frame = checkAllFrame;
+}
+
+- (void)setInfoForTorrents:(NSArray*)torrents
+{
+    //don't check if it's the same in case the metadata changed
+    fTorrents = torrents;
+
+    fSet = NO;
+}
+
+- (void)updateInfo
+{
+    if (!fSet)
+    {
+        [self setupInfo];
+    }
+
+    if (fTorrents.count == 1)
+    {
+        [fFileController refresh];
+
+#warning use TorrentFileCheckChange notification as well
+        Torrent* torrent = fTorrents[0];
+        if (torrent.folder)
+        {
+            NSInteger const filesCheckState = [torrent
+                checkForFiles:[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, torrent.fileCount)]];
+            fCheckAllButton.enabled = filesCheckState != NSOnState; //if anything is unchecked
+            fUncheckAllButton.enabled = !torrent.allDownloaded; //if there are any checked files that aren't finished
+        }
+    }
+}
+
+- (void)saveViewSize
+{
+    [NSUserDefaults.standardUserDefaults setFloat:NSHeight(self.view.frame) forKey:@"InspectorContentHeightFiles"];
+}
+
+- (void)setFileFilterText:(id)sender
+{
+    [fFileController setFilterText:[sender stringValue]];
+}
+
+- (IBAction)checkAll:(id)sender
+{
+    [fFileController checkAll];
+}
+
+- (IBAction)uncheckAll:(id)sender
+{
+    [fFileController uncheckAll];
+}
+
+- (NSArray*)quickLookURLs
+{
+    FileOutlineView* fileOutlineView = fFileController.outlineView;
+    Torrent* torrent = fTorrents[0];
+    NSIndexSet* indexes = fileOutlineView.selectedRowIndexes;
+    NSMutableArray* urlArray = [NSMutableArray arrayWithCapacity:indexes.count];
+
+    for (NSUInteger i = indexes.firstIndex; i != NSNotFound; i = [indexes indexGreaterThanIndex:i])
+    {
+        FileListNode* item = [fileOutlineView itemAtRow:i];
+        if ([self canQuickLookFile:item])
+        {
+            [urlArray addObject:[NSURL fileURLWithPath:[torrent fileLocation:item]]];
+        }
+    }
+
+    return urlArray;
+}
+
+- (BOOL)canQuickLook
+{
+    if (fTorrents.count != 1)
+    {
+        return NO;
+    }
+
+    Torrent* torrent = fTorrents[0];
+    if (!torrent.folder)
+    {
+        return NO;
+    }
+
+    FileOutlineView* fileOutlineView = fFileController.outlineView;
+    NSIndexSet* indexes = fileOutlineView.selectedRowIndexes;
+
+    for (NSUInteger i = indexes.firstIndex; i != NSNotFound; i = [indexes indexGreaterThanIndex:i])
+    {
+        if ([self canQuickLookFile:[fileOutlineView itemAtRow:i]])
+        {
+            return YES;
+        }
+    }
+
+    return NO;
+}
+
+- (NSRect)quickLookSourceFrameForPreviewItem:(id<QLPreviewItem>)item
+{
+    FileOutlineView* fileOutlineView = fFileController.outlineView;
+
+    NSString* fullPath = ((NSURL*)item).path;
+    Torrent* torrent = fTorrents[0];
+    NSRange visibleRows = [fileOutlineView rowsInRect:fileOutlineView.bounds];
+
+    for (NSUInteger row = visibleRows.location; row < NSMaxRange(visibleRows); row++)
+    {
+        FileListNode* rowItem = [fileOutlineView itemAtRow:row];
+        if ([[torrent fileLocation:rowItem] isEqualToString:fullPath])
+        {
+            NSRect frame = [fileOutlineView iconRectForRow:row];
+
+            if (!NSIntersectsRect(fileOutlineView.visibleRect, frame))
+            {
+                return NSZeroRect;
+            }
+
+            frame.origin = [fileOutlineView convertPoint:frame.origin toView:nil];
+            frame = [self.view.window convertRectToScreen:frame];
+            frame.origin.y -= frame.size.height;
+            return frame;
+        }
+    }
+
+    return NSZeroRect;
+}
+
+@end
+
+@implementation InfoFileViewController (Private)
+
+- (void)setupInfo
+{
+    fFileFilterField.stringValue = @"";
+
+    if (fTorrents.count == 1)
+    {
+        Torrent* torrent = fTorrents[0];
+
+        [fFileController setTorrent:torrent];
+
+        BOOL const isFolder = torrent.folder;
+        fFileFilterField.enabled = isFolder;
+
+        if (!isFolder)
+        {
+            fCheckAllButton.enabled = NO;
+            fUncheckAllButton.enabled = NO;
+        }
+    }
+    else
+    {
+        [fFileController setTorrent:nil];
+
+        fFileFilterField.enabled = NO;
+
+        fCheckAllButton.enabled = NO;
+        fUncheckAllButton.enabled = NO;
+    }
+
+    fSet = YES;
+}
+
+- (BOOL)canQuickLookFile:(FileListNode*)item
+{
+    Torrent* torrent = fTorrents[0];
+    return (item.isFolder || [torrent fileProgress:item] >= 1.0) && [torrent fileLocation:item];
+}
+
+@end