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Bachir Soussi Chiadmi
2015-04-08 11:40:19 +02:00
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
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These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
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you have. You must make sure that they, too, receive or can get the
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We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
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The precise terms and conditions for copying, distribution and
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GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
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means either the Program or any derivative work under copyright law:
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either verbatim or with modifications and/or translated into another
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the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
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is covered only if its contents constitute a work based on the
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Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
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conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
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and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
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a) You must cause the modified files to carry prominent notices
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b) You must cause any work that you distribute or publish, that in
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c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
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the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
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In addition, mere aggregation of another work not based on the Program
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3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
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except as expressly provided under this License. Any attempt
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License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
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It is not the purpose of this section to induce you to infringe any
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implemented by public license practices. Many people have made
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to distribute software through any other system and a licensee cannot
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This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
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Each version is given a distinguishing version number. If the Program
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either of that version or of any later version published by the Free
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Foundation.
10. If you wish to incorporate parts of the Program into other free
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to ask for permission. For software which is copyrighted by the Free
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NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
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WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

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Adaptive Image
http://drupal.org/project/adaptive_image
====================================
DESCRIPTION
-----------
The Adaptive image module provides device-appropriate versions of images from your fields.
You can activate adaptive images by adding an adaptive effect to any of your image styles.
The used technique is derived from http://adaptive-images.com/ by Matt Wilcox.
The hard work is done by Drupal core no need for any additional rewrites.
If image styles work on your website, this module will too.
REQUIREMENTS
------------
Drupal 7.x
CLIENTSIDE REQUIREMENTS
------------------------
JavaScript enabled
INSTALLING
----------
1. To install the module copy the 'adaptive_image' folder to your sites/all/modules directory.
2. Read more about installing modules at http://drupal.org/node/70151
CONFIGURING AND USING
---------------------
1. Go to admin/config/media/image-styles
Edit an existing or add a new style. Add the Adaptive image effect.
Click on 'Update style' button.
2. Go to admin/structure/types
Click on "manage display".
Choose a "image" field and click on the edit button.
Choose the previously updated style as image style.
Click on "Update".
REPORTING ISSUE. REQUESTING SUPPORT. REQUESTING NEW FEATURE
-----------------------------------------------------------
1. Go to the module issue queue at http://drupal.org/project/issues/adaptive_image?status=All&categories=All
2. Click on CREATE A NEW ISSUE link.
3. Fill the form.
4. To get a status report on your request go to http://drupal.org/project/issues/user
UPGRADING
---------
Read more at http://drupal.org/node/250790

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<?php
/**
* @file
* Adaptive Image - Adaptive images for Drupal
* @see http://adaptive-images.com/
*
* @author
* Stefan Auditor <stefan.auditor@erdfisch.de>
*/
/**
* Copy of image_style_deliver() for use with adaptive images.
*/
function adaptive_image_style_deliver($style, $scheme) {
$settings = $resolutions = array();
$settings = adaptive_image_effect_settings($style);
$mobile_first = (boolean) $settings['mobile_first'];
$resolutions = explode(',', $settings['resolutions']);
/* Do we need to switch mobile first off? */
if (adaptive_image_browser_detect()) {
$mobile_first = FALSE;
}
$resolution = adaptive_image_resolution($resolutions);
/* No resolution was found (no cookie or invalid cookie) */
if (!$resolution && count($resolutions)) {
// We send the lowest resolution for mobile-first approach, and highest otherwise
$resolution = $mobile_first ? min($resolutions) : max($resolutions);
}
// Check that the style is defined and the scheme is valid.
if (!$style || !file_stream_wrapper_valid_scheme($scheme)) {
drupal_exit();
}
foreach ($style['effects'] as $id => $effect) {
if ($effect['name'] == 'adaptive_image') {
$style['effects'][$id]['data']['width'] = $resolution;
$style['effects'][$id]['data']['height'] = NULL;
break;
}
}
$args = func_get_args();
array_shift($args);
array_shift($args);
$target = implode('/', $args);
$image_uri = $scheme . '://' . $target;
$derivative_uri = image_style_path($style['name'], $image_uri);
if ($resolution) {
$path_parts = pathinfo($derivative_uri);
$derivative_uri = $path_parts['dirname'] . '/' . $resolution . '/' . $path_parts['basename'];
}
// If using the private scheme, let other modules provide headers and
// control access to the file.
if ($scheme == 'private') {
if (file_exists($derivative_uri)) {
file_download($scheme, file_uri_target($derivative_uri));
}
else {
$headers = module_invoke_all('file_download', $image_uri);
if (in_array(-1, $headers) || empty($headers)) {
return drupal_access_denied();
}
if (count($headers)) {
foreach ($headers as $name => $value) {
drupal_add_http_header($name, $value);
}
}
}
}
// Don't start generating the image if the derivative already exists or if
// generation is in progress in another thread.
$lock_name = 'image_style_deliver:' . $style['name'] . ':' . drupal_hash_base64($image_uri);
if (!file_exists($derivative_uri)) {
$lock_acquired = lock_acquire($lock_name);
if (!$lock_acquired) {
// Tell client to retry again in 3 seconds. Currently no browsers are known
// to support Retry-After.
drupal_add_http_header('Status', '503 Service Unavailable');
drupal_add_http_header('Retry-After', 3);
print t('Image generation in progress. Try again shortly.');
drupal_exit();
}
}
// Try to generate the image, unless another thread just did it while we were
// acquiring the lock.
$success = file_exists($derivative_uri) || image_style_create_derivative($style, $image_uri, $derivative_uri);
if (!empty($lock_acquired)) {
lock_release($lock_name);
}
if ($success) {
$image = image_load($derivative_uri);
file_transfer($image->source, array('Content-Type' => $image->info['mime_type'], 'Content-Length' => $image->info['file_size']));
}
else {
watchdog('image', 'Unable to generate the derived image located at %path.', array('%path' => $derivative_uri));
drupal_add_http_header('Status', '500 Internal Server Error');
print t('Error generating image.');
drupal_exit();
}
}
/**
* Check for common desktop patterns in the user agent
*/
function adaptive_image_browser_detect() {
$userAgent = strtolower($_SERVER['HTTP_USER_AGENT']);
// Identify the OS platform. Match only desktop OSs
if (strpos($userAgent,'macintosh') ||
strpos($userAgent,'windows nt') ||
strpos($userAgent,'x11')) {
return TRUE;
}
}

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name = Adaptive Image
description = Support for adaptive images.
core = 7.x
dependencies[] = image
stylesheets[all][] = css/adaptive-image.css
; Information added by drupal.org packaging script on 2012-02-24
version = "7.x-1.4"
core = "7.x"
project = "adaptive_image"
datestamp = "1330097138"

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<?php
/**
* @file
* Adaptive Image - Adaptive images for Drupal
* @see http://adaptive-images.com/
*
* @author
* Stefan Auditor <stefan.auditor@erdfisch.de>
*/
/**
* Implements hook_init().
*/
function adaptive_image_init() {
// According to the documentation of hook_init() it should not be used to
// load JS or CSS. The CSS case has been moved to the info file. But the JS is
// here by intention, as we want it inline to prevent wait time while loading
// the script
// No need for drupal behaviours, jquery compatibility wrapper nor ready event
$js = "document.cookie = 'adaptive_image=' + Math.max(screen.width, screen.height) + '; path=/';";
drupal_add_js($js,
// First-come, first-served
array(
'type' => 'inline',
'scope' => 'header',
'group' => JS_LIBRARY,
'every_page' => TRUE,
'weight' => -500,
)
);
}
/**
* Implements hook_menu().
*/
function adaptive_image_menu() {
$items = array();
// Add image style generation paths adaptive URLs.
if (module_exists('image')) {
// Generate and deliver image derivatives of public files.
$directory_path = file_stream_wrapper_get_instance_by_scheme('public')->getDirectoryPath();
$items[$directory_path . '/styles/%image_style/adaptive-image'] = array(
'title' => 'Generate image style',
'page callback' => 'adaptive_image_style_deliver',
'page arguments' => array(count(explode('/', $directory_path)) + 1),
'access callback' => TRUE,
'type' => MENU_CALLBACK,
'file' => 'adaptive_image.image.inc',
);
// Generate and deliver image derivatives of private files.
$items['system/files/styles/%image_style/adaptive-image'] = array(
'title' => 'Generate adaptive image style',
'page callback' => 'adaptive_image_style_deliver',
'page arguments' => array(3),
'access callback' => TRUE,
'type' => MENU_CALLBACK,
'file' => 'adaptive_image.image.inc',
);
}
return $items;
}
/**
* Implements hook_image_effect_info().
*/
function adaptive_image_image_effect_info() {
$effects = array();
$effects['adaptive_image'] = array(
'label' => t('Adaptive'),
'help' => t('Adaptive image scale according to client resolution.'),
'effect callback' => 'image_scale_effect',
'dimensions callback' => 'image_scale_dimensions',
'form callback' => 'adaptive_image_scale_form',
'summary theme' => 'adaptive_image_scale_summary',
);
return $effects;
}
/**
* Form structure for the image scale form.
*
* Note that this is not a complete form, it only contains the portion of the
* form for configuring the scale options. Therefore it does not not need to
* include metadata about the effect, nor a submit button.
*
* @param $data
* The current configuration for this scale effect.
*/
function adaptive_image_scale_form($data) {
$form['resolutions'] = array(
'#type' => 'textfield',
'#title' => t('Resolutions'),
'#default_value' => isset($data['resolutions']) ? $data['resolutions'] : '1382, 992, 768, 480',
'#required' => TRUE,
'#description' => t('The resolution break-points to use (screen widths, in pixels).'),
);
$form['mobile_first'] = array(
'#type' => 'checkbox',
'#title' => t('Mobile first'),
'#default_value' => isset($data['mobile_first']) ? $data['mobile_first'] : TRUE,
'#description' => t("Check this to send the smallest version when the resolution can not be determined."),
);
$resolutions = explode(',', str_replace(' ', '', $form['resolutions']['#default_value']));
$resolution = adaptive_image_resolution($resolutions);
// Provide needed defaults
$form['height'] = array('#type' => 'hidden','#default_value' => NULL);
$form['width'] = array('#type' => 'hidden','#default_value' => $resolution);
$form['upscale'] = array('#type' => 'hidden','#default_value' => NULL);
return $form;
}
/**
* Implements hook_theme().
*/
function adaptive_image_theme() {
return array(
'adaptive_image_scale_summary' => array(
'variables' => array('data' => NULL),
),
);
}
/**
* Returns HTML for a summary of an image scale effect.
*
* @param $variables
* An associative array containing:
* - data: The current configuration for this scale effect.
*
* @ingroup themeable
*/
function theme_adaptive_image_scale_summary($variables) {
$data = $variables['data'];
if ($data['resolutions']) {
return check_plain($data['resolutions']);
}
}
/**
* Implements template_preprocess_image().
*
* Adds a class to adaptive images for max-width.
*/
function adaptive_image_preprocess_image(&$variables) {
global $base_url;
if (isset($variables['style_name'])) {
// Get image style settings
$style = image_style_load($variables['style_name']);
// Check if style contains the adaptive image effect
if ($style && adaptive_image_contains_effect($style)) {
$settings = adaptive_image_effect_settings($style);
$resolutions = explode(',', $settings['resolutions']);
$resolution = adaptive_image_resolution($resolutions);
// Only construct direct path if not private
if (!strpos($variables['path'], '/system/') && is_numeric($resolution)) {
$path_parts = pathinfo($variables['path']);
$derivative_uri = $path_parts['dirname'] . '/' . $resolution . '/' . $path_parts['basename'];
}
if (isset($derivative_uri) && file_exists(str_replace($base_url, '.', $derivative_uri))) {
// Deliver existing path to bypass menu callback
$variables['path'] = $derivative_uri;
}
else {
// Reconstruct the image path to %/%style_name/adaptive-image/% to
// trigger image generation or file access check
$variables['path'] = str_replace('styles/' . $variables['style_name'], 'styles/' . $variables['style_name'] . '/adaptive-image', $variables['path']);
}
// Add class for styling
$variables['attributes']['class'] = 'adaptive-image';
// Remove fixed image dimensions
unset($variables['height']);
unset($variables['width']);
}
}
}
/**
* Check for adaptive image effect from style
*/
function adaptive_image_contains_effect($style) {
foreach ($style['effects'] as $effect) {
if ($effect['name'] == 'adaptive_image') {
return TRUE;
}
}
return FALSE;
}
/**
* Get adaptive image effect from style settings
*/
function adaptive_image_effect_settings($style) {
$settings = array();
foreach ($style['effects'] as $effect) {
if ($effect['name'] == 'adaptive_image') {
$settings = $effect['data'];
}
}
return $settings;
}
/**
* Determine current resolution
*/
function adaptive_image_resolution($resolutions) {
$resolution = '';
/* Check to see if a valid cookie exists */
if (count($resolutions) && isset($_COOKIE['adaptive_image'])) {
if (is_numeric($_COOKIE['adaptive_image'])) {
$client_width = (int) $_COOKIE['adaptive_image']; // store the cookie value in a variable
/* the client width in the cookie is valid, now fit that number into the correct resolution break point */
rsort($resolutions); // make sure the supplied break-points are in reverse size order
$resolution = $resolutions[0]; // by default it's the largest supported break-point
foreach ($resolutions as $break_point) { // filter down
if ($client_width <= $break_point) {
$resolution = $break_point;
}
}
} else {
setcookie("adaptive_image", "", time() -1); // delete the mangled cookie
}
}
return $resolution;
}

3
sites/all/modules/adaptive_image/css/adaptive-image.css Normal file
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@@ -0,0 +1,3 @@
img.adaptive-image {
max-width: 100%;
}