Simple HTML viewer

.github/workflows/update-pot.yml

@@ -27,8 +27,7 @@ jobs:
         run: |
           apt update
           apt install -y git meson gcc gettext cmake appstream desktop-file-utils \
-            libadwaita-1-dev libgtk-4-dev libjson-glib-dev libsoup-3.0-dev libtext-engine-dev \
-            blueprint-compiler
+            libadwaita-1-dev libgtk-4-dev libjson-glib-dev libsoup-3.0-dev blueprint-compiler
 
       - name: Setup Repository
         run: |

README.md

@@ -107,17 +107,17 @@ Extension Manager depends on the following libraries:
  - libadwaita
  - libjson-glib
  - libsoup
+ - libxml2
  - [blueprint](https://gitlab.gnome.org/jwestman/blueprint-compiler)
- - [text-engine](https://github.com/mjakeman/text-engine/)
 
 On Debian-based distributions, the required dependencies can be installed with the following command:
 ```shell
-sudo apt install blueprint-compiler gettext libadwaita-1-dev libgtk-4-dev libjson-glib-dev libsoup-3.0-dev libtext-engine-dev meson
+sudo apt install blueprint-compiler gettext libadwaita-1-dev libgtk-4-dev libjson-glib-dev libsoup-3.0-dev libxml2-dev meson
 ```
 
 ### Building From Source
 ```shell
 meson setup _build
-ninja -C _build
-ninja install -C _build
+meson compile -C _build
+meson install -C _build
 ```

build-aux/com.mattjakeman.ExtensionManager.Devel.json

@@ -54,21 +54,6 @@
                 }
             ]
         },
-        {
-            "name" : "text-engine",
-            "builddir" : true,
-            "buildsystem" : "meson",
-            "config-opts" : [
-                "--libdir=/app/lib"
-            ],
-            "sources" : [
-                {
-                    "type" : "git",
-                    "url" : "https://github.com/mjakeman/text-engine.git",
-                    "branch" : "master"
-                }
-            ]
-        },
         {
             "name" : "extension-manager",
             "builddir" : true,

build-aux/com.mattjakeman.ExtensionManager.json

@@ -53,21 +53,6 @@
                 }
             ]
         },
-        {
-            "name" : "text-engine",
-            "builddir" : true,
-            "buildsystem" : "meson",
-            "config-opts" : [
-                "--libdir=/app/lib"
-            ],
-            "sources" : [
-                {
-                    "type" : "git",
-                    "url" : "https://github.com/mjakeman/text-engine.git",
-                    "branch" : "master"
-                }
-            ]
-        },
         {
             "name" : "extension-manager",
             "builddir" : true,

src/exm-application.c

@@ -1,6 +1,6 @@
 /* exm-application.c
  *
- * Copyright 2022 Matthew Jakeman
+ * Copyright 2022-2024 Matthew Jakeman <mjakeman26@outlook.co.nz>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -14,6 +14,8 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
  */
 
 #include "exm-config.h"
@@ -42,14 +44,6 @@ exm_application_new (gchar *application_id,
                        NULL);
 }
 
-static void
-exm_application_finalize (GObject *object)
-{
-    ExmApplication *self = (ExmApplication *)object;
-
-    G_OBJECT_CLASS (exm_application_parent_class)->finalize (object);
-}
-
 static ExmWindow *
 get_current_window (GApplication *app)
 {
@@ -156,8 +150,6 @@ exm_application_class_init (ExmApplicationClass *klass)
     GObjectClass *object_class = G_OBJECT_CLASS (klass);
     GApplicationClass *app_class = G_APPLICATION_CLASS (klass);
 
-    object_class->finalize = exm_application_finalize;
-
     /*
     * We connect to the activate callback to create a window when the application
     * has been launched. Additionally, this callback notifies us when the user
@@ -190,26 +182,19 @@ exm_application_show_about (GSimpleAction *action,
     adw_about_dialog_set_comments (ADW_ABOUT_DIALOG (about_dialog), _("Browse, install, and manage GNOME Shell Extensions."));
     adw_about_dialog_set_developers (ADW_ABOUT_DIALOG (about_dialog), authors);
     adw_about_dialog_set_translator_credits (ADW_ABOUT_DIALOG (about_dialog), _("translator-credits"));
-    adw_about_dialog_set_copyright (ADW_ABOUT_DIALOG (about_dialog), "© 2022 Matthew Jakeman");
-
-    // Dependency Attribution
-    adw_about_dialog_add_legal_section (ADW_ABOUT_DIALOG (about_dialog),
-                                        "text-engine",
-                                        "Copyright (C) 2022 Matthew Jakeman",
-                                        GTK_LICENSE_MPL_2_0,
-                                        NULL);
+    adw_about_dialog_set_copyright (ADW_ABOUT_DIALOG (about_dialog), "© 2022-2024 Matthew Jakeman");
 
 #if WITH_BACKTRACE
     adw_about_dialog_add_legal_section (ADW_ABOUT_DIALOG (about_dialog),
                                         "libbacktrace",
-                                        "Copyright (C) 2012-2016 Free Software Foundation, Inc.",
+                                        "© 2012-2016 Free Software Foundation, Inc.",
                                         GTK_LICENSE_BSD_3,
                                         NULL);
 #endif
 
     adw_about_dialog_add_legal_section (ADW_ABOUT_DIALOG (about_dialog),
                                         "blueprint",
-                                        "Copyright (C) 2021 James Westman",
+                                        "© 2021 James Westman",
                                         GTK_LICENSE_LGPL_3_0,
                                         NULL);
 

src/exm-comment-tile.blp

@@ -37,7 +37,18 @@ template $ExmCommentTile: Gtk.Widget {
       }
     }
 
-    $TextDisplay display {}
+    Gtk.Label {
+      styles [
+        "multiline"
+      ]
+
+      label: bind template.comment as <$ExmComment>.comment;
+      margin-top: 6;
+      use-markup: true;
+      wrap: true;
+      wrap-mode: word_char;
+      xalign: 0;
+    }
 
     Gtk.Label date {
       styles [

src/exm-comment-tile.c

@@ -20,9 +20,6 @@
 
 #include "exm-comment-tile.h"
 
-#include <text-engine/format/import.h>
-#include <text-engine/ui/display.h>
-
 #include "exm-rating.h"
 
 struct _ExmCommentTile
@@ -33,9 +30,8 @@ struct _ExmCommentTile
 
     GtkLabel *author;
     GtkLabel *author_badge;
-    GtkLabel *date;
     ExmRating *rating;
-    TextDisplay *display;
+    GtkLabel *date;
 };
 
 G_DEFINE_FINAL_TYPE (ExmCommentTile, exm_comment_tile, GTK_TYPE_WIDGET)
@@ -111,24 +107,16 @@ exm_comment_tile_constructed (GObject *object)
 
     g_return_if_fail (EXM_IS_COMMENT (self->comment));
 
-    TextDocument *document;
     GDateTime *datetime;
 
-    gchar *text, *date;
+    gchar *date;
     g_object_get (self->comment,
-                  "comment", &text,
                   "date", &date,
                   NULL);
 
-    document = text_document_new ();
-    document->frame = format_parse_html (text);
-    g_free (text);
-
     datetime = g_date_time_new_from_iso8601 (date, g_time_zone_new_utc ());
     g_free (date);
 
-    g_object_set (self->display, "document", document, NULL);
-
     if (datetime != NULL)
     {
       gtk_label_set_label (self->date, g_date_time_format (datetime, "%x"));
@@ -161,11 +149,10 @@ exm_comment_tile_class_init (ExmCommentTileClass *klass)
 
     gtk_widget_class_set_template_from_resource (widget_class, "/com/mattjakeman/ExtensionManager/exm-comment-tile.ui");
 
-    gtk_widget_class_bind_template_child (widget_class, ExmCommentTile, display);
     gtk_widget_class_bind_template_child (widget_class, ExmCommentTile, author);
     gtk_widget_class_bind_template_child (widget_class, ExmCommentTile, author_badge);
-    gtk_widget_class_bind_template_child (widget_class, ExmCommentTile, date);
     gtk_widget_class_bind_template_child (widget_class, ExmCommentTile, rating);
+    gtk_widget_class_bind_template_child (widget_class, ExmCommentTile, date);
 
     gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
 }

src/exm-detail-view.blp

@@ -20,6 +20,7 @@ template $ExmDetailView: Adw.NavigationPage {
           header_suffix.orientation: vertical;
           header_suffix.spacing: 12;
           ext_install.halign: start;
+          comment_box.min-children-per-line: 1;
         }
 
         apply => $breakpoint_apply_cb() swapped;
@@ -304,6 +305,7 @@ template $ExmDetailView: Adw.NavigationPage {
                         orientation: vertical;
 
                         Gtk.FlowBox comment_box {
+                          min-children-per-line: 2;
                           max-children-per-line: 2;
                           homogeneous: true;
                           selection-mode: none;

src/exm-utils.c

@@ -1,6 +1,6 @@
 /* exm-utils.c
  *
- * Copyright 2022 Matthew Jakeman <mjakeman26@outlook.co.nz>
+ * Copyright 2022-2024 Matthew Jakeman <mjakeman26@outlook.co.nz>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,6 +20,9 @@
 
 #include "exm-utils.h"
 
+#include <libxml/HTMLparser.h>
+#include <libxml/HTMLtree.h>
+
 char *
 exm_utils_read_resource (const char *resource, gsize *length)
 {
@@ -55,3 +58,82 @@ exm_utils_read_resource (const char *resource, gsize *length)
   g_clear_object (&file);
   return NULL;
 }
+
+static GString *
+build_text_recursive (xmlNode *node, GString *string)
+{
+    xmlNode *cur_node = NULL;
+
+    for (cur_node = node; cur_node != NULL; cur_node = cur_node->next)
+    {
+        // ENTER NODE
+        if (cur_node->type == XML_ELEMENT_NODE)
+        {
+            if (g_str_equal (cur_node->name, "b"))
+                g_string_append (string, "<b>");
+            else if (g_str_equal (cur_node->name, "i"))
+                g_string_append (string, "<i>");
+            else if (g_str_equal (cur_node->name, "u"))
+                g_string_append (string, "<u>");
+            else if (g_str_equal (cur_node->name, "br"))
+                g_string_append (string, "\n");
+            else if (g_str_equal (cur_node->name, "p"))
+                g_string_append (string, "");
+            else
+                g_info ("Ignored element: %s\n", cur_node->name);
+        }
+        else if (cur_node->type == XML_TEXT_NODE)
+        {
+            gchar *escaped_text = g_markup_escape_text ((const gchar *)cur_node->content, -1);
+            g_string_append (string, escaped_text);
+            g_free (escaped_text);
+        }
+
+        // PROCESS CHILDREN
+        build_text_recursive (cur_node->children, string);
+
+        // EXIT NODE
+        if (cur_node->type == XML_ELEMENT_NODE)
+        {
+            if (g_str_equal (cur_node->name, "b"))
+                g_string_append (string, "</b>");
+            else if (g_str_equal (cur_node->name, "i"))
+                g_string_append (string, "</i>");
+            else if (g_str_equal (cur_node->name, "u"))
+                g_string_append (string, "</u>");
+        }
+    }
+
+    return string;
+}
+
+gchar *
+exm_utils_convert_html (const gchar *html)
+{
+    htmlDocPtr doc;
+    xmlNode *root;
+    GString *string = g_string_new ("");
+
+    doc = htmlParseDoc ((const xmlChar *)html, "UTF-8");
+    if (doc == NULL)
+    {
+        g_critical ("Failed to parse HTML document.");
+        return NULL;
+    }
+
+    root = xmlDocGetRootElement (doc);
+    if (root == NULL)
+    {
+        g_warning ("Empty HTML document.");
+        xmlFreeDoc (doc);
+        xmlCleanupParser ();
+        return NULL;
+    }
+
+    build_text_recursive (root, string);
+
+    xmlFreeDoc (doc);
+    xmlCleanupParser ();
+
+    return g_string_free (string, FALSE);
+}

src/exm-utils.h

@@ -1,6 +1,6 @@
 /* exm-utils.h
  *
- * Copyright 2022 Matthew Jakeman <mjakeman26@outlook.co.nz>
+ * Copyright 2022-2024 Matthew Jakeman <mjakeman26@outlook.co.nz>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -24,3 +24,6 @@
 
 char *
 exm_utils_read_resource (const char *resource, gsize *length);
+
+gchar *
+exm_utils_convert_html (const gchar *html);

src/meson.build

@@ -41,7 +41,7 @@ exm_deps = [
   dependency('gio-unix-2.0'),
   dependency('json-glib-1.0'),
   dependency('libsoup-3.0'),
-  dependency('text-engine-0.1')
+  dependency('libxml-2.0'),
 ]
 
 if libbacktrace_dep.found()