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serenity/Libraries/LibWeb/WebContentView.cpp

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WebContent: Start work on browser process separation :^) The "WebContent" service provides a very restricted instance of LibWeb running as an unprivileged user account. This will be used to implement process separation in Browser, among other things. This first cut of the service only spawns a single WebContent process when someone connects to /tmp/portal/webcontent. We will soon switch this over to spawning a new process for each connection. Since this feature is very immature, we'll be bringing it up inside of Demos/WebView as a separate demo program. Eventually this will become a reusable widget that anyone can embed and easily get out-of-process web content in their GUI. This is pretty, pretty cool! :^)
2020-06-17 17:31:42 +02:00
/*
* 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 "WebContentView.h"
#include "WebContentClient.h"
#include <AK/SharedBuffer.h>
#include <LibGUI/Painter.h>
WebContent: Basic scrolling support! :^) The WebContentView widget now inherits from GUI::ScrollableWidget and will pass its scroll offset over to the WebContent process as it's changing. This is not super efficient and can get a bit laggy, but it will do fine as an initial scrolling implementation. Just like the single-process Web::PageView widget, WebContentView also paints scrolled content by translating the Gfx::Painter.
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#include <LibGUI/ScrollBar.h>
WebContent: Start work on browser process separation :^) The "WebContent" service provides a very restricted instance of LibWeb running as an unprivileged user account. This will be used to implement process separation in Browser, among other things. This first cut of the service only spawns a single WebContent process when someone connects to /tmp/portal/webcontent. We will soon switch this over to spawning a new process for each connection. Since this feature is very immature, we'll be bringing it up inside of Demos/WebView as a separate demo program. Eventually this will become a reusable widget that anyone can embed and easily get out-of-process web content in their GUI. This is pretty, pretty cool! :^)
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#include <LibGfx/SystemTheme.h>
WebContentView::WebContentView()
{
m_client = WebContentClient::construct(*this);
client().post_message(Messages::WebContentServer::UpdateSystemTheme(Gfx::current_system_theme_buffer_id()));
}
WebContentView::~WebContentView()
{
}
void WebContentView::load(const URL& url)
{
client().post_message(Messages::WebContentServer::LoadURL(url));
}
void WebContentView::paint_event(GUI::PaintEvent& event)
{
WebContent: Use available size for bitmap (#2701) After adding the scrolling feature, content available space reduced and thus the bitmap size was always larger, than the inner size. This lead to the horizontal scrollbar always beeing engaged.
2020-07-05 12:45:56 +02:00
GUI::ScrollableWidget::paint_event(event);
WebContent: Give the WebContentView a proper GUI::Frame look :^)
2020-07-04 23:27:36 +02:00
WebContent: Start work on browser process separation :^) The "WebContent" service provides a very restricted instance of LibWeb running as an unprivileged user account. This will be used to implement process separation in Browser, among other things. This first cut of the service only spawns a single WebContent process when someone connects to /tmp/portal/webcontent. We will soon switch this over to spawning a new process for each connection. Since this feature is very immature, we'll be bringing it up inside of Demos/WebView as a separate demo program. Eventually this will become a reusable widget that anyone can embed and easily get out-of-process web content in their GUI. This is pretty, pretty cool! :^)
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GUI::Painter painter(*this);
WebContent: Give the WebContentView a proper GUI::Frame look :^)
2020-07-04 23:27:36 +02:00
painter.add_clip_rect(frame_inner_rect());
WebContent: Start work on browser process separation :^) The "WebContent" service provides a very restricted instance of LibWeb running as an unprivileged user account. This will be used to implement process separation in Browser, among other things. This first cut of the service only spawns a single WebContent process when someone connects to /tmp/portal/webcontent. We will soon switch this over to spawning a new process for each connection. Since this feature is very immature, we'll be bringing it up inside of Demos/WebView as a separate demo program. Eventually this will become a reusable widget that anyone can embed and easily get out-of-process web content in their GUI. This is pretty, pretty cool! :^)
2020-06-17 17:31:42 +02:00
painter.add_clip_rect(event.rect());
WebContent: Give the WebContentView a proper GUI::Frame look :^)
2020-07-04 23:27:36 +02:00
painter.translate(frame_thickness(), frame_thickness());
WebContent: Add double buffering to the WebContentView This removes the remaining flicker in the WebContentView widget and makes it feel pretty good to use it. :^) The increase in memory use is something we'll have to address in the future with more sophisticated solutions like tiling, etc.
2020-07-05 16:31:50 +02:00
ASSERT(m_front_bitmap);
painter.blit({ 0, 0 }, *m_front_bitmap, m_front_bitmap->rect());
WebContent: Start work on browser process separation :^) The "WebContent" service provides a very restricted instance of LibWeb running as an unprivileged user account. This will be used to implement process separation in Browser, among other things. This first cut of the service only spawns a single WebContent process when someone connects to /tmp/portal/webcontent. We will soon switch this over to spawning a new process for each connection. Since this feature is very immature, we'll be bringing it up inside of Demos/WebView as a separate demo program. Eventually this will become a reusable widget that anyone can embed and easily get out-of-process web content in their GUI. This is pretty, pretty cool! :^)
2020-06-17 17:31:42 +02:00
}
void WebContentView::resize_event(GUI::ResizeEvent& event)
{
WebContent: Use available size for bitmap (#2701) After adding the scrolling feature, content available space reduced and thus the bitmap size was always larger, than the inner size. This lead to the horizontal scrollbar always beeing engaged.
2020-07-05 12:45:56 +02:00
GUI::ScrollableWidget::resize_event(event);
WebContent: Add double buffering to the WebContentView This removes the remaining flicker in the WebContentView widget and makes it feel pretty good to use it. :^) The increase in memory use is something we'll have to address in the future with more sophisticated solutions like tiling, etc.
2020-07-05 16:31:50 +02:00
m_front_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, available_size())->to_bitmap_backed_by_shared_buffer();
m_front_bitmap->shared_buffer()->share_with(client().server_pid());
m_back_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, available_size())->to_bitmap_backed_by_shared_buffer();
m_back_bitmap->shared_buffer()->share_with(client().server_pid());
client().post_message(Messages::WebContentServer::SetViewportRect(Gfx::IntRect({ horizontal_scrollbar().value(), vertical_scrollbar().value() }, available_size())));
WebContent: Basic scrolling support! :^) The WebContentView widget now inherits from GUI::ScrollableWidget and will pass its scroll offset over to the WebContent process as it's changing. This is not super efficient and can get a bit laggy, but it will do fine as an initial scrolling implementation. Just like the single-process Web::PageView widget, WebContentView also paints scrolled content by translating the Gfx::Painter.
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request_repaint();
WebContent: Start work on browser process separation :^) The "WebContent" service provides a very restricted instance of LibWeb running as an unprivileged user account. This will be used to implement process separation in Browser, among other things. This first cut of the service only spawns a single WebContent process when someone connects to /tmp/portal/webcontent. We will soon switch this over to spawning a new process for each connection. Since this feature is very immature, we'll be bringing it up inside of Demos/WebView as a separate demo program. Eventually this will become a reusable widget that anyone can embed and easily get out-of-process web content in their GUI. This is pretty, pretty cool! :^)
2020-06-17 17:31:42 +02:00
}
WebContent: Pass mouse events through to the WebContent process Just send the incoming mouse events across to the other side and let LibWeb deal with them. :^)
2020-06-17 18:05:08 +02:00
void WebContentView::mousedown_event(GUI::MouseEvent& event)
{
WebContent: Translate mouse event coordinates into content space The WebContentView widget now passes content space coordinates along with the various mouse events. :^)
2020-07-04 23:23:36 +02:00
client().post_message(Messages::WebContentServer::MouseDown(to_content_position(event.position()), event.button(), event.buttons(), event.modifiers()));
WebContent: Pass mouse events through to the WebContent process Just send the incoming mouse events across to the other side and let LibWeb deal with them. :^)
2020-06-17 18:05:08 +02:00
}
void WebContentView::mouseup_event(GUI::MouseEvent& event)
{
WebContent: Translate mouse event coordinates into content space The WebContentView widget now passes content space coordinates along with the various mouse events. :^)
2020-07-04 23:23:36 +02:00
client().post_message(Messages::WebContentServer::MouseUp(to_content_position(event.position()), event.button(), event.buttons(), event.modifiers()));
WebContent: Pass mouse events through to the WebContent process Just send the incoming mouse events across to the other side and let LibWeb deal with them. :^)
2020-06-17 18:05:08 +02:00
}
void WebContentView::mousemove_event(GUI::MouseEvent& event)
{
WebContent: Translate mouse event coordinates into content space The WebContentView widget now passes content space coordinates along with the various mouse events. :^)
2020-07-04 23:23:36 +02:00
client().post_message(Messages::WebContentServer::MouseMove(to_content_position(event.position()), event.button(), event.buttons(), event.modifiers()));
WebContent: Pass mouse events through to the WebContent process Just send the incoming mouse events across to the other side and let LibWeb deal with them. :^)
2020-06-17 18:05:08 +02:00
}
WebContent: Start work on browser process separation :^) The "WebContent" service provides a very restricted instance of LibWeb running as an unprivileged user account. This will be used to implement process separation in Browser, among other things. This first cut of the service only spawns a single WebContent process when someone connects to /tmp/portal/webcontent. We will soon switch this over to spawning a new process for each connection. Since this feature is very immature, we'll be bringing it up inside of Demos/WebView as a separate demo program. Eventually this will become a reusable widget that anyone can embed and easily get out-of-process web content in their GUI. This is pretty, pretty cool! :^)
2020-06-17 17:31:42 +02:00
void WebContentView::notify_server_did_paint(Badge<WebContentClient>, i32 shbuf_id)
{
WebContent: Add double buffering to the WebContentView This removes the remaining flicker in the WebContentView widget and makes it feel pretty good to use it. :^) The increase in memory use is something we'll have to address in the future with more sophisticated solutions like tiling, etc.
2020-07-05 16:31:50 +02:00
if (m_back_bitmap->shbuf_id() == shbuf_id) {
swap(m_back_bitmap, m_front_bitmap);
WebContent: Start work on browser process separation :^) The "WebContent" service provides a very restricted instance of LibWeb running as an unprivileged user account. This will be used to implement process separation in Browser, among other things. This first cut of the service only spawns a single WebContent process when someone connects to /tmp/portal/webcontent. We will soon switch this over to spawning a new process for each connection. Since this feature is very immature, we'll be bringing it up inside of Demos/WebView as a separate demo program. Eventually this will become a reusable widget that anyone can embed and easily get out-of-process web content in their GUI. This is pretty, pretty cool! :^)
2020-06-17 17:31:42 +02:00
update();
WebContent: Add double buffering to the WebContentView This removes the remaining flicker in the WebContentView widget and makes it feel pretty good to use it. :^) The increase in memory use is something we'll have to address in the future with more sophisticated solutions like tiling, etc.
2020-07-05 16:31:50 +02:00
}
WebContent: Start work on browser process separation :^) The "WebContent" service provides a very restricted instance of LibWeb running as an unprivileged user account. This will be used to implement process separation in Browser, among other things. This first cut of the service only spawns a single WebContent process when someone connects to /tmp/portal/webcontent. We will soon switch this over to spawning a new process for each connection. Since this feature is very immature, we'll be bringing it up inside of Demos/WebView as a separate demo program. Eventually this will become a reusable widget that anyone can embed and easily get out-of-process web content in their GUI. This is pretty, pretty cool! :^)
2020-06-17 17:31:42 +02:00
}
WebContent: Put some debug spam behind an #ifdef
2020-07-04 23:19:12 +02:00
void WebContentView::notify_server_did_invalidate_content_rect(Badge<WebContentClient>, [[maybe_unused]] const Gfx::IntRect& content_rect)
WebContent: Allow the WebContent process to trigger repaints After layout, we may want to repaint the page, so we now listen for the PageClient::page_did_invalidate() notification and use it to drive a client-side repaint. Note that an invalidation request from LibWeb makes a full roundtrip to the WebContent client and back since the client drives painting.
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{
WebContent: Put some debug spam behind an #ifdef
2020-07-04 23:19:12 +02:00
#ifdef DEBUG_SPAM
WebContent: Allow the WebContent process to trigger repaints After layout, we may want to repaint the page, so we now listen for the PageClient::page_did_invalidate() notification and use it to drive a client-side repaint. Note that an invalidation request from LibWeb makes a full roundtrip to the WebContent client and back since the client drives painting.
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dbg() << "server did invalidate content_rect: " << content_rect << ", current shbuf_id=" << m_bitmap->shbuf_id();
WebContent: Put some debug spam behind an #ifdef
2020-07-04 23:19:12 +02:00
#endif
WebContent: Notify client when web content selection changes The WebContentView widgets reacts to this by requesting a repaint.
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request_repaint();
}
void WebContentView::notify_server_did_change_selection(Badge<WebContentClient>)
{
request_repaint();
}
WebContent: Basic scrolling support! :^) The WebContentView widget now inherits from GUI::ScrollableWidget and will pass its scroll offset over to the WebContent process as it's changing. This is not super efficient and can get a bit laggy, but it will do fine as an initial scrolling implementation. Just like the single-process Web::PageView widget, WebContentView also paints scrolled content by translating the Gfx::Painter.
2020-07-04 23:19:32 +02:00
void WebContentView::notify_server_did_layout(Badge<WebContentClient>, const Gfx::IntSize& content_size)
{
set_content_size(content_size);
}
WebContent: Plumb title changes over to the WebContentView WebContentView now fires its on_title_change hook, like Web::PageView. We use this in the WebView test app to update the window title. :^)
2020-07-04 23:40:17 +02:00
void WebContentView::notify_server_did_change_title(Badge<WebContentClient>, const String& title)
{
if (on_title_change)
on_title_change(title);
}
WebContent: Plumb scroll-into-view requests from server to client The WebContentView widget will now be able to react to scroll-into-view requests from the WebContent process.
2020-07-05 15:43:43 +02:00
void WebContentView::notify_server_did_request_scroll_into_view(Badge<WebContentClient>, const Gfx::IntRect& rect)
{
scroll_into_view(rect, true, true);
}
WebContent: Plumb hovered links from WebContent process over to widget Also add a little GUI::StatusBar to the demo app so we can see the hovered link URL's live. :^)
2020-07-05 16:59:20 +02:00
void WebContentView::notify_server_did_hover_link(Badge<WebContentClient>, const URL& url)
{
if (on_link_hover)
on_link_hover(url);
}
void WebContentView::notify_server_did_unhover_link(Badge<WebContentClient>)
{
if (on_link_hover)
on_link_hover({});
}
WebContent: Plumb link clicks to the WebContentView :^) You can now react to links being clicked via the on_link_click hook.
2020-07-06 20:01:46 +02:00
void WebContentView::notify_server_did_click_link(Badge<WebContentClient>, const URL& url, const String& target, unsigned int modifiers)
{
if (on_link_click)
on_link_click(url, target, modifiers);
}
void WebContentView::notify_server_did_middle_click_link(Badge<WebContentClient>, const URL& url, const String& target, unsigned int modifiers)
{
if (on_link_middle_click)
on_link_middle_click(url, target, modifiers);
}
WebContent: Basic scrolling support! :^) The WebContentView widget now inherits from GUI::ScrollableWidget and will pass its scroll offset over to the WebContent process as it's changing. This is not super efficient and can get a bit laggy, but it will do fine as an initial scrolling implementation. Just like the single-process Web::PageView widget, WebContentView also paints scrolled content by translating the Gfx::Painter.
2020-07-04 23:19:32 +02:00
void WebContentView::did_scroll()
{
WebContent: Use available size for bitmap (#2701) After adding the scrolling feature, content available space reduced and thus the bitmap size was always larger, than the inner size. This lead to the horizontal scrollbar always beeing engaged.
2020-07-05 12:45:56 +02:00
client().post_message(Messages::WebContentServer::SetViewportRect(visible_content_rect()));
WebContent: Basic scrolling support! :^) The WebContentView widget now inherits from GUI::ScrollableWidget and will pass its scroll offset over to the WebContent process as it's changing. This is not super efficient and can get a bit laggy, but it will do fine as an initial scrolling implementation. Just like the single-process Web::PageView widget, WebContentView also paints scrolled content by translating the Gfx::Painter.
2020-07-04 23:19:32 +02:00
request_repaint();
}
WebContent: Notify client when web content selection changes The WebContentView widgets reacts to this by requesting a repaint.
2020-07-04 20:57:57 +02:00
void WebContentView::request_repaint()
{
WebContent: Add double buffering to the WebContentView This removes the remaining flicker in the WebContentView widget and makes it feel pretty good to use it. :^) The increase in memory use is something we'll have to address in the future with more sophisticated solutions like tiling, etc.
2020-07-05 16:31:50 +02:00
client().post_message(Messages::WebContentServer::Paint(m_back_bitmap->rect().translated(horizontal_scrollbar().value(), vertical_scrollbar().value()), m_back_bitmap->shbuf_id()));
WebContent: Allow the WebContent process to trigger repaints After layout, we may want to repaint the page, so we now listen for the PageClient::page_did_invalidate() notification and use it to drive a client-side repaint. Note that an invalidation request from LibWeb makes a full roundtrip to the WebContent client and back since the client drives painting.
2020-06-17 18:00:18 +02:00
}
WebContent: Start work on browser process separation :^) The "WebContent" service provides a very restricted instance of LibWeb running as an unprivileged user account. This will be used to implement process separation in Browser, among other things. This first cut of the service only spawns a single WebContent process when someone connects to /tmp/portal/webcontent. We will soon switch this over to spawning a new process for each connection. Since this feature is very immature, we'll be bringing it up inside of Demos/WebView as a separate demo program. Eventually this will become a reusable widget that anyone can embed and easily get out-of-process web content in their GUI. This is pretty, pretty cool! :^)
2020-06-17 17:31:42 +02:00
WebContentClient& WebContentView::client()
{
return *m_client;
}
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