LibGUI: Move file icon lookup into a separate FileIconProvider

Let's get it out of FileSystemModel so you can look up a nice icon for a path without needing a model.
Author: https://github.com/awesomekling Commit: 3dd15da7b1
2025-04-26 22:38:51 +00:00 · 2020-08-12 19:28:10 +02:00 · 2020-08-12 19:28:10 +02:00 · 3dd15da7b1 · 2024-07-19 03:41:24 +09:00
commit 3dd15da7b1
parent 686238cb94
6 changed files with 204 additions and 72 deletions
--- a/Libraries/LibGUI/FileIconProvider.cpp
+++ b/Libraries/LibGUI/FileIconProvider.cpp
@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <AK/String.h>
+#include <LibGUI/FileIconProvider.h>
+#include <LibGUI/Icon.h>
+#include <LibGfx/Bitmap.h>
+#include <sys/stat.h>
+
+namespace GUI {
+
+#define ENUMERATE_FILETYPES(F) \
+    F(cplusplus, ".cpp")       \
+    F(header, ".h")            \
+    F(html, ".html")           \
+    F(image, ".png")           \
+    F(java, ".java")           \
+    F(javascript, ".js")       \
+    F(library, ".so", ".a")    \
+    F(markdown, ".md")         \
+    F(object, ".o", ".obj")    \
+    F(pdf, ".pdf")             \
+    F(python, ".py")           \
+    F(sound, ".wav")           \
+    F(ini, ".ini")             \
+    F(text, ".txt")
+
+#define __ENUMERATE_FILETYPE(filetype_name, ...) \
+    static Icon s_filetype_##filetype_name##_icon;
+ENUMERATE_FILETYPES(__ENUMERATE_FILETYPE)
+#undef __ENUMERATE_FILETYPE
+
+static Icon s_directory_icon;
+static Icon s_directory_open_icon;
+static Icon s_home_directory_icon;
+static Icon s_home_directory_open_icon;
+static Icon s_file_icon;
+static Icon s_symlink_icon;
+static Icon s_socket_icon;
+static Icon s_executable_icon;
+
+static void initialize_if_needed()
+{
+    static bool s_initialized = false;
+    if (s_initialized)
+        return;
+    s_directory_icon = Icon::default_icon("filetype-folder");
+    s_directory_open_icon = Icon::default_icon("filetype-folder-open");
+    s_home_directory_icon = Icon::default_icon("home-directory");
+    s_home_directory_open_icon = Icon::default_icon("home-directory-open");
+    s_file_icon = Icon::default_icon("filetype-unknown");
+    s_symlink_icon = Icon::default_icon("filetype-symlink");
+    s_socket_icon = Icon::default_icon("filetype-socket");
+    s_executable_icon = Icon::default_icon("filetype-executable");
+
+#define __ENUMERATE_FILETYPE(filetype_name, ...) \
+    s_filetype_##filetype_name##_icon = Icon::default_icon("filetype-" #filetype_name);
+    ENUMERATE_FILETYPES(__ENUMERATE_FILETYPE)
+#undef __ENUMERATE_FILETYPE
+
+    s_initialized = true;
+}
+
+Icon FileIconProvider::directory_icon()
+{
+    initialize_if_needed();
+    return s_directory_icon;
+}
+
+Icon FileIconProvider::directory_open_icon()
+{
+    initialize_if_needed();
+    return s_directory_open_icon;
+}
+
+Icon FileIconProvider::home_directory_icon()
+{
+    initialize_if_needed();
+    return s_home_directory_icon;
+}
+
+Icon FileIconProvider::home_directory_open_icon()
+{
+    initialize_if_needed();
+    return s_home_directory_open_icon;
+}
+
+Icon FileIconProvider::filetype_image_icon()
+{
+    initialize_if_needed();
+    return s_filetype_image_icon;
+}
+
+Icon FileIconProvider::icon_for_path(const String& path)
+{
+    struct stat stat;
+    if (::stat(path.characters(), &stat) < 0)
+        return {};
+    return icon_for_path(path, stat.st_mode);
+}
+
+Icon FileIconProvider::icon_for_path(const String& path, mode_t mode)
+{
+    initialize_if_needed();
+    if (S_ISDIR(mode))
+        return s_directory_icon;
+    if (S_ISLNK(mode))
+        return s_symlink_icon;
+    if (S_ISSOCK(mode))
+        return s_socket_icon;
+    if (mode & (S_IXUSR | S_IXGRP | S_IXOTH))
+        return s_executable_icon;
+
+#define __ENUMERATE_FILETYPE(filetype_name, filetype_extensions...)      \
+    for (auto& extension : { filetype_extensions }) {                    \
+        if (path.ends_with(extension, CaseSensitivity::CaseInsensitive)) \
+            return s_filetype_##filetype_name##_icon;                    \
+    }
+    ENUMERATE_FILETYPES(__ENUMERATE_FILETYPE)
+#undef __ENUMERATE_FILETYPE
+
+    return s_file_icon;
+}
+
+}